Kristiani, Endah, Rizhal Hendi Ristanto, and Elsa Lisanti. 2020. “Exploring Gender-Based Biological Concepts: An Analysis of Bilingual Secondary School Students”. Biosfer: Jurnal Pendidikan Biologi 13 (1), 1 - 13. https://doi.org/10.21009/biosferjpb.v13n1.1-13.