Kurnianto, A. 2018. STUDI SISTEM PELAYANAN CUSTOMER MELALUI E-COMMERCE. Jurnal Sains & Teknologi Fakultas Teknik Universitas Darma Persada. 8, 2 (Sep. 2018), 45–50. DOI:https://doi.org/10.70746/jstunsada.v8i2.51.