Afriani, L. ., M. A. . Siregar, and E. O. . Hidayat. “Study of Soil Improvement and Slope Protection on the Double Track Engineering Design Between Giham- Martapura”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 55, no. 2, Feb. 2021, pp. 103-15, https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/12270.