Maulana, Slamet, Desnita Desnita, and Raihanati Raihanati. “The Development of Knowledge Enrichment Books Concerning Ice and Snow Physical Studies for High-School Students”. Jurnal Penelitian & Pengembangan Pendidikan Fisika 4, no. 2 (December 31, 2018): 83 - 90. Accessed April 18, 2026. http://103.8.12.212:33180/unj/index.php/jpppf/article/view/7350.