Zuhroh, D., 		Widiyawati, W., & 		Jannah, N.
2021 Dec 24.  ANALYSIS OF CHANGES IN HAND WASHING TECHNIQUES IN PRESCHOOL CHILDREN THROUGH THE  DEMONSTRATION METHOD. Journal Universitas Muhammadiyah Gresik Engineering, Social Science, and Health International Conference (UMGESHIC). [Online] 1:2