Hardianti, Yulia, Nurmasari Sartono, and Yulilina Retno Dewahrani. “The Effect of Bilingual Student Worksheet Application Toward Students Learning Outcomes on the Human Reproductive System Topic”. Biosfer: Jurnal Pendidikan Biologi 7, no. 1 (January 23, 2018): 30–36. Accessed October 1, 2026. https://journal.unj.ac.id/unj/index.php/biosfer/article/view/5661.