Faisol, Arif, Mashudi Mashudi, and Samsul Bachri. “Comparison of Several Methods for Analysis Slope Length Index Factor at A Watershed Scale”. Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) 13, no. 3 (August 12, 2024): 817–830. Accessed November 26, 2025. https://jurnal.fp.unila.ac.id/index.php/JTP/article/view/8613.