Hendrawan, Arya Ksatria Fernanda, et al. “Nitrification Rate in the Bioremediation of Organic Wastewater Using Chlorella Sp. And Nitrifying-Denitrifying Bacteria”. Jurnal Pengelolaan Sumberdaya Alam Dan Lingkungan (Journal of Natural Resources and Environmental Management), vol. 11, no. 2, Aug. 2021, pp. 309-23, https://doi.org/10.29244/jpsl.11.2.309-323.