Asian Development Bank – (https://www.adb.org/site/evaluation/main)

• Provides a full Catalogue of Evaluation Reports comprising of the following: Technical Assistance Performance Evaluation Reports, Project/Program Performance Evaluation Reports, Special Evaluation Studies, Assessments of Development Impact, Impact Evaluation Studies, Sector Assistance Program Evaluations, Country Assistance Program Evaluations, and Annual Evaluation Reports.

BASE (Bielefeld Academic Search Engine) – www.base-search.net

• is one of the most powerful researches on academic studies texts. More than 100 million scientific documents, 70% of them are free

Bioline International  –  www.bioline.org.br

• is a library of scientific bioscience journals published in developing countries.

Britannica.com – (https://www.britannica.com/)

CERN Document Server –  (http://cds.cern.ch)

• CERN Document Server – offers full-text preprints, articles, books, journals, and other documents of interest to persons working in particle physics and its related areas.

CORE  – (https://core.ac.uk/)

• Aggregates all open access research outputs from repositories and journals worldwide and make them available to the public. In this way CORE facilitates free unrestricted access to research for all. The world’s largest collection of open access research papers

Directory of Open Access Books – (https://www.doabooks.org)

Directory of Open Access Journals (DOAJ) – (https://doaj.org)

• is a community-curated online directory that indexes and provides access to high-quality, open access, peer-reviewed journals.
• All DOAJ services are free of charge including being indexed in DOAJ.

Encyclopedia.com – (https:www.encyclopedia.com)

• The world’s #1 Online Encyclopedia

Free Medical Journals – (http://www.freemedicaljournals.com/)

• Promoting free Access to medical journals

FREELIPINIANA ONLINE LIBRARY

 (http://panitikan.ph/freelipiniana-online -library/) 

• Seeks to bring Filipiniana literature to every Filipino in a time when information and education are limited.

Google Books – (https://books.google.com.ph)

• Google has been scanning in books from public libraries and other sources for years.

Kahimyang (https://kahimyang.com/)

• Publish Filipino culture and ancient and recent Philippine history and write blogs about current developments in Philippine politics.

https://link.springer.com

• access to more than 10 million scientific documents: books, articles, research protocols.

National Commission of Culture and the Arts (NCCA) (http://www.ncca.gov.ph/)

• NCCA’s homepage is the country’s best site for information on Philippine culture and the arts. The site also highlights varied online resources for the seven (7) arts leading to not only discovery but of the enrichment of the Filipino soul.

OER Commons – oercommons.org

OER Commons is a dynamic digital library and network. Explore open education resources and join our network of educators dedicated to curriculum.

OnlineSchools.org:  – (http://www.onlineschools.org/open-access-journals/)

• strive to provide students interested in earning an online degree with the most accurate, comprehensive, and accessible information about accredited online schools at every education level to ensure that they select the best programs to meet their goals.

Open Access Theses and Dissertations https://oatd.org/oatd/search?q=sciatica+Nerve&form=basic

OpenThesis (http://www.openthesis.org/)

• is a free repository of theses, dissertations, and other academic documents, coupled with powerful search, organization, and collaboration tools.

PDFDRIVE – www.pdfdrive.com

• is the largest website for free download of books in PDF format. Claiming over 225 million names.

Philippine E-Journal – (https://ejournals.ph/journals.php)

• Philippine Journals Online – is a database of journals published in Philippines, covering the full range of academic disciplines

PHL CHED Connect- (https://phlconnect.ched.gov.ph/about)

• A Web application that contains higher education course materials in text, media and other digital assets that are useful for teaching, learning and research purposes.

PNAS (Proceedings of the National Academy of Sciences) of the United States of America  – (https://www.pnas.org/)

• is an authoritative source of high-impact, original research that broadly spans the biological, physical, and social sciences.

Public Library of Science (PLOS)    – (https://plos.org/)

• PLOS is a nonprofit, Open Access publisher empowering researchers to accelerate progress in science and medicine by leading a transformation in research communication.

PQDT Open – (http://pqdtopen.proquest.com)

• Provides the full text of open access dissertations and theses free of charge.

Pub Med Central- (http://www.ncbi.nlm.nih.gov/pmc/)

• PubMed Central – Offers unrestricted access to the U.S. National Library of Medicine’s digital archive of life sciences journal literature.

REFSEEK – (www.refseek.com)

• Academic Resource Search. More than a billion sources: encyclopedia, monographies, magazines.

RePeC ( Research Papers in Economics) – http://repec.org

• Volunteers from 102 countries have collected almost 4 million publications on economics and related science.

Science.gov (Your Gateway to U.S. Federal Science) – www.science.gov

• is an American state search engine on 2200+ scientific sites. More than 200 million articles are indexed.

Scientific Journal International (SJI) –   (https://publons.com/publisher/2412/scientific-journals-international-sji)

• SJI publishes peer-reviewed open-access journals for all disciplines.
• Register to get access.

Social Science Research Network (SSRN) – (http://www.ssrn.com/en/)

• SSRN´s eLibrary research papers in more than 50 disciplines

SPRINGER – (https://link.springer.com)

• access to more than 10 million scientific documents: books, articles, research protocols.

The National Bureau of Economic Research – (http://www.nber.org)

• Founded in 1920, the NBER is a private, non-profit, non-partisan organization dedicated to conducting economic research and to disseminating research findings among academics, public policymakers, and business professionals.

The NIST Data Gateway – (https://www.nist.gov/srd)

World Bank – Open Knowledge Repository – https://openknowledge.worldbank.org/

• Browse 30,995 publications in 11 collections, 573 sub-collections
• Annual Reports & Independent Evaluation , Books, Journals, Serial Publications, Technical Papers, Country Strategy Documents, Economic and Sector Work (ESW) Studies, Working Papers, Knowledge Notes, Speeches of World Bank Presidents , Multilingual Content

 WorldCat – (www.worldcat.org)

• a search for the contents of 20 thousand worldwide libraries. Find out where lies the nearest rare book you need.