Lestari M, Guspatni G. Validity of powerpoint-ispring learning media on carbohydrate materials in high school. J. Pijar.MIPA [Internet]. 2023 Mar. 30 [cited 2024 May 20];18(2):170-5. Available from: https://jurnalfkip.unram.ac.id/index.php/JPM/article/view/4635