Wuryaningrum, Veny, Nurmasari Sartono, and Yulilina Retno Dewahrani. “Developing Bilingual Student Work Sheet With Contextual Approach on Human Reproductive System Topic”. Biosfer: Jurnal Pendidikan Biologi 7, no. 1 (January 23, 2018): 10–16. Accessed October 1, 2026. https://journal.unj.ac.id/unj/index.php/biosfer/article/view/5618.