Firdiana, Winda, Dwi Juniati, dan Janet Trineke Manoy. “Strategic Competence of Junior High School Students in Solving Geometry Problems Reviewed from Sex Differences”. Math Didactic: Jurnal Pendidikan Matematika 8, no. 1 (Mei 27, 2022): 1-15. Diakses Juli 8, 2025. https://jurnal.stkipbjm.ac.id/index.php/math/article/view/1602.