Nugraha HS, Mutaqin H, Fathah A, Juliane C. Mengidentifikasi Strategi Promosi pada Jasa Penjualan Saldo Digital menggunakan Pendekatan Clustering. Edumatic [Internet]. 2023 Jun. 20 [cited 2025 Jan. 22];7(1):11-9. Available from: https://e-journal.hamzanwadi.ac.id/index.php/edumatic/article/view/7385