Aman, Mustar, Ipang Sasono, Yunianto Agung Nugroho, Riyanto, and Suroso. 2021. “Improving Sales by Object-Oriented System Approach: E-Commerce Utilization Analysis”. International Journal of Social and Management Studies 2 (3):84-92. https://doi.org/10.5555/ijosmas.v2i3.35.