Harahap, Khairunnisa, Rini Anggraini, and Armis Armis. “Pengembangan Perangkat Pembelajaran Berbasis Discovery Learning Materi Barisan Dan Deret Kelas XI SMA/MA”. Jurnal Cendekia : Jurnal Pendidikan Matematika 8, no. 1 (March 31, 2024): 701-713. Accessed April 19, 2026. https://www.j-cup.org/index.php/cendekia/article/view/2098.