Slamat, S. 2015. PLANKTON FERTILITY IN SUPPORTING FISH PRODUCTIVITY IN MONOTONOUS SWAMP IN HULU SUNGAI UTARA REGENCY. TROPICAL WETLAND JOURNAL. 1, 1 (Nov. 2015), 25 - 31. DOI:https://doi.org/10.20527/twj.v1i1.14.