Nugraha, Hamka Surya, Hilman Mutaqin, Adittia Fathah, and Christina Juliane. “Mengidentifikasi Strategi Promosi Pada Jasa Penjualan Saldo Digital Menggunakan Pendekatan Clustering”. Edumatic: Jurnal Pendidikan Informatika 7, no. 1 (June 20, 2023): 11–19. Accessed January 22, 2025. https://e-journal.hamzanwadi.ac.id/index.php/edumatic/article/view/7385.