ramadhan shaddad A, Nurwaskito A. Analisis Desain Ramp Tambang pada PIT B PT Pancaran Surya Abadi Kabupaten Kutai Kartanegara. JMI [Internet]. 2024 Apr. 30 [cited 2026 Jan. 22];2(2):53-8. Available from: https://ejournal.insightpublisher.com/index.php/JMI/article/view/272