هر عنوان کتاب (تک جلدی)
۵ هزارتومان
https://www.taylorfrancis.com/search?key=&subject=
https://www.sciencedirect.com/browse/journals-and-books?contentType=BK
https://igi-global.com/search/?dt=complete-listing&ctid=1
https://onlinelibrary.wiley.com/action/showPublications?PubType=book
https://link.springer.com/search?facet-content-type=Book
درخواست از طریق ایمیل
YaBeSH.ir@gmail.com
