Salim, Ashadi. “Pengukuran Modulus Elastisitas Dinamis Batuan Dengan Metode Seismik Refraksi”. ComTech: Computer, Mathematics and Engineering Applications 3, no. 2 (December 1, 2012): 971-976. Accessed March 31, 2025. https://journal.binus.ac.id/index.php/comtech/article/view/2331.