Tarima, Gorby Corneles, et al. “ANALISIS KUALITAS AIR SUNGAI SARIO KECAMATAN SARIO MANADO SULAWESI UTARA”. Jurnal Ilmiah Sains, vol. 16, no. 1, May 2016, pp. 19-23, doi:10.35799/jis.16.1.2016.12324.