Siregar, Yusuf, Romi Mardela, Ishak Aziz, Roma Irawan, desi purnama sari, eval edmizal, and Ikhwanul Arifan. “Uji Validitas Dan Reliabilitas Instrumen Tes Kekuatan Push-Up Berbasis Digital”. Jurnal Gladiator 2, no. 5 (September 12, 2022): 198-206. Accessed May 28, 2025. http://gladiator.ppj.unp.ac.id/index.php/gltdor/article/view/121.