Ahmadin, A. Salam, Tasrif, Umar, and M. Indra Jayanti. “Design and Models of Natural Materials As Realistic Educational Toys (APE-R) for Early Childhood Education in School Environments”. Journal of Educational Management Research, vol. 5, no. 5, Aug. 2026, pp. 5560-75, doi:10.61987/jemr.v5i5.2995.