Kamilalita, N. ., E. N. . Hidayah, and Y. S. . Purnomo. “Performance of Mircoalgae Spirulina Platensis in Oxidation Ditch Algae Reactor to Remove Nitrate in Domestic Wastewater”. Nusantara Science and Technology Proceedings, Nov. 2021, pp. 95-99, doi:10.11594/nstp.2021.1415.