Sudirman, Ridwan. “The Effect of Down Hill Training on Pencak Silat Extracurricular Scratch Speed”. Edumaspul: Jurnal Pendidikan 6, no. 2 (October 1, 2022): 2840-2843. Accessed December 9, 2025. https://jurnal.unimen.cloud/maspuljr/article/view/5111.