Triestuning, Elok, Rian Prasetyo, Diaz Nur Aindah, Regita Indira Ardianti, Dita Wardatul Anifa, Nurul Khalifah, Dyah Fitri Anggraheni, Dini Fridasari, dan Sekar Mega Oktavina. 2019. “IMPROVEMENT OF KNOWLEDGE OF STUDENTS OF ELEMENTARY SCHOOL OF RANGKAH KIDUL ON HAND WASH THROUGH HEALTH PROMOTION”. Community Service Journal of Indonesia 1 (2), 18-20. https://doi.org/10.36720/csji.v1i2.132.