Nggae, Y.E.K. et al. 2025. Escherichia Coli and Total Coliform Contamination in Various Raw Water Sources in Ende Regency, Nusa Tenggara Timur Province, Indonesia . Jurnal Teknik Lingkungan. 31, 1 (Apr. 2025), 37–48. DOI:https://doi.org/10.5614/j.tl.2025.31.1.5.