Dirmanto, Agus, Edy Cahyono, and Triastuti Sulistyaningsih. “The Effectiveness of Problem Based Learning on Acid-Base Materials to Improve Scientific Attitude and Creativity of SMA N 1 Comal Students”. Journal of Innovative Science Education 10, no. 2 (August 6, 2021): 193-198. Accessed July 17, 2024. http://journal.unnes.ac.id/sju/jise/article/view/43051.