Gusman E, Gusman F, Hafizul Lathief W. Development Content Learning System in Acid Base Solution Using Flipped Classroom at Senior High School. JHICE [Internet]. 30Jun.2021 [cited 21Sep.2024];1(01):46-4. Available from: http://jhice.ppj.unp.ac.id/index.php/jhice/article/view/37