Microbiological Study of Escherichia Coli Contamination in Dug Wells in Demak District, Central Java. Geocelebes [Internet]. 26 April 2025 [dikutip 2 Agustus 2026];9(1):28–42. Tersedia pada: https://journal-598.unhas.ac.id/index.php/geocelebes/article/view/43184