Atika MD, Latisma L. Description of Student Chemistry Learning Difficulties in Acid Base Material Class XI IPA at SMAN 7 Padang. EPK [Internet]. 22Jul.2022 [cited 21Nov.2024];3(3):18-6. Available from: http://entalpipendidikan.ppj.unp.ac.id/index.php/epk/article/view/273