Sari, Eva Novika, Reduk Nilawarni, and Erna Heryanti. “The Effect of Two Stay Two Stray (TSTS) Technique of Cooperative Learning Model Toward Students Biology Learning Outcomes”. Biosfer: Jurnal Pendidikan Biologi 7, no. 1 (January 23, 2018): 25–29. Accessed May 25, 2026. https://journal.unj.ac.id/unj/index.php/biosfer/article/view/5660.