1.
Roy Barli Sihombing, Etin Solihatin, Ajat Sudrajat. The Effect of Cooperative Learning Models and Self Efficacy to Critical Thinking Ability on Social Studies. IJASRE [Internet]. 2018Jul.5 [cited 2021Jan.23];4(7):89-96. Available from: https://ijasre.net/index.php/ijasre/article/view/494