Syahmi, D.A. and Putri, R.E. 2023. THE EFFECT OF PROJECT BASED LEARNING MODEL ON COGNITIVE SKILL OF 8th GRADE STUDENTS’ ON HUMAN CIRCULATORY SYSTEM TOPIC. Universe. 4, 1 (Jun. 2023), 127–131. DOI:https://doi.org/10.24036/universe.v4i1.552.