Purnama Sari, Winda, and Dwi Indra Aprilliandari. “The Development of PBL Integrated Bioenvironmentalscience App (BES App) for Environmental Learning”. BIOEDUSCIENCE 5, no. 3 (December 31, 2021): 264–271. Accessed July 16, 2024. https://journal.uhamka.ac.id/index.php/bioeduscience/article/view/7799.