Permata, Veronika Yulia, Hari Siswoyo, and Riyanto Haribowo. “Mapping of Groundwater Flow Pattern and Its Quality Index Based on Microbiological Parameters in Klojen District, Malang City, East Java, Indonesia”. Civil and Environmental Science Journal (CIVENSE) 4, no. 2 (April 26, 2021): 106–114. Accessed April 24, 2024. https://civense.ub.ac.id/index.php/civense/article/view/106.