Widianto, Nugroho. “Building a Sales Information System As an Effort to Create Efficiency in Customer Service at Omah’e Cinta Art and Gallery”. International Journal of Education, Information Technology, and Others 6, no. 2 (April 4, 2023): 18-26. Accessed April 17, 2024. https://jurnal.peneliti.net/index.php/IJEIT/article/view/4091.