Fina Fitriya, Firda, and Siti Faizah. “Pengembangan Media Pembelajaran Matematika Berbasis Android Pada Materi Trigonometri”. Kognitif: Jurnal Riset HOTS Pendidikan Matematika 1, no. 2 (December 1, 2021): 104–114. Accessed July 27, 2025. https://etdci.org/journal/kognitif/article/view/108.