suwahono, suwahono, and Dwi Mawanti. “Using Environmentally Friendly Media (Happy Body) in Early Childhood Science: Human Body Parts Lesson”. JPUD - Jurnal Pendidikan Usia Dini, vol. 13, no. 2, Dec. 2019, pp. 281-95, doi:10.21009/JPUD.132.06.