Sugiharyanti, Endang. “Improvement the Result of Learning in the Offering Help Material Using the Snowball Throwing Model ”. Ideguru: Jurnal Karya Ilmiah Guru 6, no. 2 (May 1, 2021): 193-198. Accessed April 27, 2024. https://jurnal-dikpora.jogjaprov.go.id/index.php/jurnalideguru/article/view/220.