ANGGRAINI, S. I.; DIANA ARFIATI; HAPPY NURSYAM; AUDINA I. PRATIWI; EKKI WINDI; SOFIATUL. Reducing The Concentration of Organic Matter and Proximate of Catfish (Clarias gariepinus) Culture Medium Using Bacillus Subtilis. Samakia : Jurnal Ilmu Perikanan, v. 10, n. 2, p. 73-82, 19 Sep. 2019.