Zuhroh, Diah, 		Widiyawati, Wiwik, AND 		Jannah, Nurul.
" ANALYSIS OF CHANGES IN HAND WASHING TECHNIQUES IN PRESCHOOL CHILDREN THROUGH THE  DEMONSTRATION METHOD" <em>Journal Universitas Muhammadiyah Gresik Engineering, Social Science, and Health International Conference (UMGESHIC)</em> [Online], Volume 1 Number 2 (24 December 2021)