Ukur Ginting, R. ., A. . O Sarumaha, A. . Sibero, and H. . Situmorang. “IMPLEMENTASI CUSTOMER RELATIONSHIP MANAGEMENT DALAM PERANCANGAN APLIKASI POINT OF SALE (POS) BERBASIS ANDROID”. Jurnal Minfo Polgan, vol. 11, no. 2, Aug. 2022, pp. 79-88, doi:10.33395/jmp.v11i2.11693.