W. R. Wahyuni, H. Luluk, Zakirman, and E. S. Syarah, “Developing Physical Activity-Based Ular Tangga Rahasia Learning Media to Enhance Early Childhood Gross Motor Skills”, J. Educative: J. Educ. Stud., vol. 10, no. 2, pp. 230–242, Dec. 2025.