Lila Setiyani, and Evelyn Tjandra. “System Design: Data Flow Diagrams of Sales Process, a Case Study of CV. Jatayu Catra Internusa”. Jurnal E-Komtek 6, no. 1 (June 30, 2022): 82-88. Accessed April 19, 2026. https://www.jurnal.politeknik-kebumen.ac.id/E-KOMTEK/article/view/860.