“The Differences of Achievement of the National Olympiad in Chemistry at the Public and Private Senior High School by Utilizing Quizizz Media”. Jurnal Pendidikan Kimia 13, no. 1 (April 1, 2021): 69–77. Accessed March 23, 2026. https://jurnal.unimed.ac.id/2012/index.php/jpk/article/view/24146.