Purnomo, Ariyanto Dwi, La Kamadi, and Sofyan Haeruddin. “Improving Student Learning Outcomes By Modifying Baseball Props In The Shot Put Learning”. ETDC: Indonesian Journal of Research and Educational Review 1, no. 3 (June 27, 2022): 441–449. Accessed April 24, 2025. https://etdci.org/journal/ijrer/article/view/309.