Kurnia, I.D. et al. 2020. The Effect of Combination Health Education: Snake Ladder Game and Sing- a-Song Methods to Improve Personal Hygiene Behavior in School-Age Children. International Journal of Psychosocial Rehabilitation. 24, 7 (Sep. 2020), 8940–8946. DOI:https://doi.org/10.61841/a18bjd30.