Yuliana, Y., Chifdillah, N.A., Rahayu, E.P. and Hendriani, D. 2024. Playing Puzzles Improves School-Age Children’s Handwashing Knowledge and Skills. Interest : Jurnal Ilmu Kesehatan. 13, 2 (Nov. 2024), 90–103. DOI:https://doi.org/10.37341/interest.v13i2.599.