Widiastuti, Widiastuti, and Pramudito Hutumo. “MENINGKATAN KETERAMPILAN LOMPAT JAUH GAYA JONGKOK MELALUI MODIFIKASI ALAT BANTU”. Gladi : Jurnal Ilmu Keolahragaan 9, no. 1 (April 30, 2018): 56 - 67. Accessed May 4, 2025. http://103.8.12.212:33180/unj/index.php/gjik/article/view/7271.