Pracha Yeunyongkul และผู้แต่งคนอื่นๆ. (2021) Investigation of Properties of Powder Coating Sludge-Indian kaolin Based Geopolymer. <i>RMUTL Engineering Journal</i>, <i>6</i>(2), 11-18.Pracha Yeunyongkul และผู้แต่งคนอื่นๆ. "Investigation of Properties of Powder Coating Sludge-Indian kaolin Based Geopolymer". RMUTL Engineering Journal 6 (2021):11-18.Pracha Yeunyongkul และผู้แต่งคนอื่นๆ. Investigation of Properties of Powder Coating Sludge-Indian kaolin Based Geopolymer. Rajamangala University of Technology Lanna:ม.ป.ท. 2021.