Lestari, Indah, 		Krisnanto, Paulinus, AND 		Fitriana, Lala.
" The Difference of Health Education Through Demonstration and Singing Video Methods on Hand-Washing Soap Skill in Preschool Children" <em>Jurnal Keperawatan Respati Yogyakarta</em> [Online], Volume 7 Number 2 (18 May 2020)