Hirosuke Hirano, Takeshi Toyama, Nobuyuki Nishimiya, Davin H. E. Setiamarga, Shugo Morita, Yuto Uragaki, and Kyoichi Okamoto. 2016. “ARTIFICIAL SLUDGE BASED ON COMPOSITIONAL INFORMATION OF A NATURAL SEA SLUDGE”. GEOMATE Journal 12 (31):95-99. https://geomatejournal.com/geomate/article/view/1162.