Yolanda, Erlin, and Jamiatul Hamidah. 2021. “EDUCATION OF HOW TO WASH AND DRY HANDS WITH LIQUID SOAP AND WATER THROUGH POSTERS ON INSTAGRAM”. Prosiding Pengembangan Masyarakat Mandiri Berkemajuan Muhammadiyah (Bamara-Mu) 1 (1):1052-57. https://proceeding.mbunivpress.or.id/index.php/bamara/article/view/70.