Novrinda, Riza, and Irfan Saputra. “Analisis Kemantapan Lereng Kuari Batugamping Di Tuban II PT. United Tractors Semen Gresik Tuban Jawa Timur”. ReTII00 (March 16, 2017). Accessed December 5, 2024. //journal.itny.ac.id/index.php/ReTII/article/view/509.