“The Implementation of the Cooperative Learning Method Using Modified Rubber Balls to Improve Shot Put Learning Outcomes Among Fifth-Grade Students at MI Darul Ulum Sambirobyong, Sumbergempol District, Tulungagung Regency, Academic Year 2025/2026” (2026) Jurnal Ilmiah Mandala Education, 12(3), pp. 1310–1316. doi:10.58258/psz1tw70.