asrini, ketut, 		Sandi Adnyana, I Wayan, AND 		Rai, I Nyoman.
" STUDI ANALISIS  KUALITAS AIR   DI DAERAH ALIRAN SUNGAI PAKERISAN  PROVINSI BALI" <em>ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science)</em> [Online], Volume 11 Number 2 (30 November 2017)