Rusidah, Yunita, Lailatul Farikhah, and Yayuk Mundriyastutik. “Qualitative Analysis Of Bottled Drinking Water And Refilled Drinking Water Sold Around University Of Muhammadiyah”. Prosiding University Research Colloquium (December 8, 2021): 63–77. Accessed May 18, 2024. https://repository.urecol.org/index.php/proceeding/article/view/1773.