Ronald Alvin Ifnie, Jones, Tommy Trides, Windhu Nugroho, Revia Oktaviani, and Albertus Juvensius Pontus. “Studi Korelasi Kekuatan Batulempung Dengan Uji Kuat Tekan Dan Point Load Index Formasi Pulaubalang Kota Samarinda”. Journal of Comprehensive Science (JCS) 2, no. 10 (October 23, 2023): 1709–1714. Accessed October 18, 2024. https://jcs.greenpublisher.id/index.php/jcs/article/view/534.