Novalinda, Rina, M. Giatman, Syahril, Rizky Ema Wulansari, and Chau Trung Tin. 2023. “Constructivist Computer-Based Instruction (CBI) Approach: A CBI Flipped Learning Integrated Problem Based and Case Method (PBL-Cflip) in Clinical Refraction Course”. International Journal of Online and Biomedical Engineering (iJOE) 19 (05):pp. 42-56. https://doi.org/10.3991/ijoe.v19i05.37707.