Sulthan, Nafis, Jaswadi Jaswadi, and Sugeng Sulistiono. “A Case Study of the Analysis of Business Process Modelling and Notation for Purchase Order and Product Receipt in Small Medium-Sized Enterprises”. Journal of Industrial Engineering & Management Research 2, no. 5 (August 23, 2021): 44 - 50. Accessed January 9, 2025. https://mail.jiemar.org/index.php/jiemar/article/view/193.