Khamdahsag, P., W. Thongkao, A. Saowapakpongchai, and V. Tanboonchuy. “Kaolin Modified Nano Zero Valent Iron Synthesis via Box-Behnken Design Optimization”. Applied Environmental Research, vol. 39, no. 2, June 2017, pp. 55-65, doi:10.35762/AER.2017.39.2.5.