Ristanto, R., S. Zahira, and R. Rusdi. “Ciculapod for Teaching Circulation Systems: Development and Validity of Biological Learning Media”. QALAMUNA: Jurnal Pendidikan, Sosial, Dan Agama, Vol. 15, no. 2, Oct. 2023, pp. 971-86, doi:10.37680/qalamuna.v15i2.3349.