Nurahmi, Agisna Putri, and Eldi Mulayana. “Quasi-Experimental Study of the Effect of the Snowball-Throwing Learning Model on Learning Outcomes in Social Studies Subjects”. Harmoni Sosial: Jurnal Pendidikan IPS 8, no. 2 (January 9, 2023). Accessed June 13, 2025. https://jurnal.uny.ac.id/index.php/hsjpi/article/view/47062.