Eva Novika, Reduk, Erna. The Effect of Two Stay Two Stray (TSTS) Technique of Cooperative Learning Model toward Students Biology Learning Outcomes. Biosfer [Internet]. 2018 Jan. 23 [cited 2024 Nov. 24];7(1):25-9. Available from: https://journal.unj.ac.id/unj/index.php/biosfer/article/view/5660