Kurniawati D. The Effectiveness of Using Cooperative Learning Strategy in on English Literature Lesson in University of PGRI Ronggolawe Tuban Improving Students’ Motivation. retco [Internet]. 2023 Mar. 2 [cited 2024 May 5];1(1):91-4. Available from: http://prosiding.unirow.ac.id/index.php/retco/article/view/1813