Muchtar, Muswerry. “NUTRIENT PHOSPHATE, NITRATE AND SILICATE DISTRIBUTION OF NATUNA ARCHIPELAGO WATERS”. Jurnal Ilmu dan Teknologi Kelautan Tropis 4, no. 2 (Desember 31, 2012). Diakses Mei 19, 2024. https://jai.ipb.ac.id/index.php/jurnalikt/article/view/7792.