Herniwanti, Herniwanti, Edi Sudarto, Kamali Zaman, Oktavia Dewi, and Novita Rany. 2022. “The Sanitary Hygiene of Refilled Drinking Water Depots During the Covid-19 Pandemic”. Jurnal Penelitian Pendidikan IPA 8 (5):2476-82. https://doi.org/10.29303/jppipa.v8i5.2343.