Warut Waramit และ Jeerapat Ngaoprasertwong. (2015) Improving coal sales profit by alternative blending processes. Chulalongkorn University:ม.ป.ท.Warut Waramit และ Jeerapat Ngaoprasertwong. 2015. Improving coal sales profit by alternative blending processes. ม.ป.ท.:Chulalongkorn University;Warut Waramit และ Jeerapat Ngaoprasertwong. Improving coal sales profit by alternative blending processes. ม.ป.ท.:Chulalongkorn University, 2015. Print.