Zuhroh, Diah, Wiwik Widiyawati, & Nurul Hidayatul Jannah.
" 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], 1.2 (2021): 784-792. Web. 22 Dec. 2024