Istiowati O, Pratiwi YR, Mufassirin A, Susesti DA, Pratiwi VN. Efforts to Increase Knowledge of Clean and Healthy Living Behaviors (PHBS) Through Counseling and Making Hand Sanitizers at 152 Gresik State Elementary Schools . JHCS [Internet]. 2024 Dec. 3 [cited 2026 Aug. 9];3(2):40-7. Available from: https://journal2.unusa.ac.id/index.php/jhcs/article/view/6727