Issafira, R. D. ., L. . Edahwati, Sutiyono, N. . Adyono, W. . Saputro, W. D. . Lestari, A. K. . Faizin, and T. P. . Sari. “The Observation of Struvite (MgNH4 PO4 .6H2O) Precipitation Using Visual MINTEQ”. Nusantara Science and Technology Proceedings, Nov. 2021, pp. 308-12, doi:10.11594/nstp.2021.1447.