Franka Hendra Sukma, Roslina Mohammad, and Astuty Amrin. “The Risk Priority Number (RPN) At A Level Crossings Along The Railway Line In Indonesia”. Journal of Advanced Research in Applied Sciences and Engineering Technology 25, no. 1 (December 19, 2021): 7–18. Accessed April 26, 2024. https://www.akademiabaru.com/submit/index.php/araset/article/view/4324.