The majority of people around the world use the Google search engine to get the information or addresses they want, but most of the time they only return with few or unconfirmed results, or a lot of sources they find and it is difficult to search, in addition to the absence of any indication of the credibility of the information or the reliability of the site. . Here are the 12 most accurate sites for academic resources and libraries, as well as articles, conferences, scientific journals, master’s and doctoral theses, economics research, scientific documents, and finally books that can be downloaded for free with a brief explanation of the content provided by each search engine.
Provides academic resources in an easy way, more than a billion sources from books, magazines, news and encyclopedias.
An easy-to-use search engine that searches more than 20 thousand libraries and contains more than 2 billion sources and enables the user to find the closest library to him.
It contains more than 3 million sources in various scientific fields such as articles, papers, conferences and parts of books.
It carries extensive research results, content for academics and is constantly updated, containing more than 120 million publications.
A voluntary search engine that collects articles published in scientific journals in developing countries.
He holds more than 500 thousand master’s and doctoral theses in all fields.
Research Paper’s in Economics
A search engine containing more than two million searches in economics and other related sciences.
A US government scientific search engine that aggregates over 2,000 science websites and contains more than 200 million papers and authoritative results.
A search engine that contains millions of downloadable Arabic books.
The largest site to download books in all disciplines in PDF format that contains more than 225 million books ready for direct download and can be used for study.
A search engine aimed at students, teachers, administrators, and others that contains authoritative materials.
One of the best and most powerful academic research engines, there are more than 100 million scientific documents, in addition to 70% of the articles it contains are free of charge.