jstor is a digital library of academic journals, books, and primary sources.

academia.edu is a place to share and follow research.

access 160+ million publications and connect with 25+ million researchers. join for free and gain visibility by uploading your research.

mdpi is a publisher of peer-reviewed, open access journals since its establishment in 1996.

open access publisher of peer-reviewed scientific articles across the entire spectrum of academia. research network for academics to stay up-to-date with the latest scientific publications, events, blogs and news.

browse our vast collection of ebooks in specialist subjects led by a global network of editors.

sciencedirect is the world's leading source for scientific, technical, and medical research. explore journals, books and articles.

cambridge partnership for education aims to improve education systems across the globe through partnerships with various governments. read more here.

semantic scholar uses groundbreaking ai and engineering to understand the semantics of scientific literature to help scholars discover relevant research.

first published in 1869, nature is the world’s leading multidisciplinary science journal. nature publishes the finest peer-reviewed research that drives ground-breaking discovery, and is read by thought-leaders and decision-makers around the world.