ramadhan shaddad, Aqsal, and Arif Nurwaskito. “Analisis Desain Ramp Tambang Pada PIT B PT Pancaran Surya Abadi Kabupaten Kutai Kartanegara”. Journal of Mining Insight 2, no. 2 (April 30, 2024): 53–58. Accessed October 13, 2025. https://ejournal.insightpublisher.com/index.php/JMI/article/view/272.