Maloloy-on, Melisa C, and Alvic A Arnado. “Elementary School Teachers’ Proficiency: Philippine Professional Standards under Flexible Teaching Modality”. International Journal of Membrane Science and Technology 10, no. 2 (June 21, 2023): 857-865. Accessed December 21, 2024. https://cosmosscholars.com/phms/index.php/ijmst/article/view/1286.