Sarkity, D., Putri Loren, P. and Fernando, A. 2025. DEVELOPMENT OF AUDIO VISUAL-BASED E-HANDOUT ON THE TOPIC OF HUMAN BLOOD CIRCULATORY SYSTEM. Universe. 6, 2 (Dec. 2025), 166-176. DOI:https://doi.org/10.24036/universe.v6i2.946.