Kustiani, Ria, and Umi Solikhah. “The Effect of Quartet Play on Knowledge, Attitude, and Hand Washing Practices in School-Aged Children”. Proceedings Series on Health & Medical Sciences 1 (December 10, 2020): 20–23. Accessed July 8, 2025. https://conferenceproceedings.ump.ac.id/pshms/article/view/27.