Somsavanh Phanmatha. 2009. Optimum environmental management of human settlement : a case study of Nam Houng village, Xekatam hydroelectric power project, Lao PDR. Faculty of Science, Khon Kaen University;
Somsavanh Phanmatha. (2009) Optimum environmental management of human settlement : a case study of Nam Houng village, Xekatam hydroelectric power project, Lao PDR. . Khon Kaen University/Khon Kaen.
Somsavanh Phanmatha. Optimum environmental management of human settlement : a case study of Nam Houng village, Xekatam hydroelectric power project, Lao PDR. . Khon Kaen:Khon Kaen University, 2009.
Somsavanh Phanmatha. (2009) Optimum environmental management of human settlement : a case study of Nam Houng village, Xekatam hydroelectric power project, Lao PDR. . Khon Kaen University/Khon Kaen.