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Hidayat, R., Nedi, S. and Nurachmi, irvina 2019. ANALYSIS CONCENTRATION OF NITRATE, PHOSPHATE, SILICATE AND RELATIONSHIP WITH DIATOM ABUDANCE IN WATERS TANJUNG TIRAM DISTRCTS BATU BARA REGENCY OF NORTH SUMATERA PROVINCE. Asian Journal of Aquatic Sciences. 2, 1 (Apr. 2019), 1-11. DOI:https://doi.org/10.31258/ajoas.2.1.1-11.