Azhar, M.H., Ulkhaq, M.F. and Prayogo, . 2017. Abundance and Diversity of Bacteria on Catfish Nursery Rearing (Clarias gariepinus) With Closed Water System (Close Water System). Journal of Aquaculture Science. 2, 1 (Nov. 2017), 81–89. DOI:https://doi.org/10.31093/joas.v2i1.19.