Bahari, Saeni Daeng Udin, et al. “PENGEMBANGAN VIDEO PEMBELAJARAN DIFERENSIASI DALAM MATERI PERBANDINGAN TRIGONOMETRI DI KELAS X MA MATHLA’UL ANWAR PONTIANAK”. Jurnal Prodi Pendidikan Matematika (JPPM), vol. 5, no. 2, July 2023, pp. 646-53, https://jurnal.mipatek.ikippgriptk.ac.id/index.php/JPPM/article/view/578.