نورمگز - https://www.noormags.ir fa Investigating the amount and type of internet use and its positive and negative effects on the social and psychological behavior of students at Islamic Azad University https://www.noormags.ir/view/fa/articlepage/2979324/investigating-the-amount-and-type-of-internet-use-and-its-positive-and-negative-effects-on-the-social-and-psychological-behavior-of-students-at-islamic-azad-university Sat, 21 Jun 2014 20:30:00 GMT