Hia, Selamat Walmanto. “Operation Data Analityc of Barge Changeover Process in Coal Loading Jetties: A Case Study With Multi-Size Barges and Variable Jetty Capacities”. Systemic Analytics 3, no. 3 (September 14, 2025): 193–200. Accessed September 7, 2026. http://sa-journal.org/index.php/systemic/article/view/44.