Safari, Yusuf, and Mia Maulia. “Memahami Konsep Barisan Dan Deret Geometri Secara Lengkap”. Karimah Tauhid 4, no. 6 (June 16, 2025): 3559–3567. Accessed June 8, 2026. http://103.127.96.46/index.php/karimahtauhid/article/view/19023.