Br Marbun, Maulina, Hapzi Ali, and Fransiskus Dwikotjco. “Model Keputusan Pembelian Dan Pembelian Ulang: Analisis Promosi Dan Kualitas Pelayanan ”. Jurnal Ilmu Multidisplin 1, no. 3 (November 17, 2022): 571–586. Accessed November 28, 2024. https://greenpub.org/JIM/article/view/66.