Tegar Saputra W, Cahya Prima E, Riandi. Low-cost measurement light intensity and efficiency of the lamp For school purposes in science experiment. RIPE [Internet]. 2023 Dec. 26 [cited 2024 Sep. 8];2(2):114-2. Available from: https://journal.institutpendidikan.ac.id/index.php/ripe/article/view/36