Badulis และผู้แต่งคนอื่นๆ. 1998. Risk assessment from potential weathering characteristics of Mae Moh lignite mine and power plant wastes Mae Moh district Lampang province. Graduate School, Chiang Mai University;
Badulis และผู้แต่งคนอื่นๆ. (1998) Risk assessment from potential weathering characteristics of Mae Moh lignite mine and power plant wastes Mae Moh district Lampang province . Chiang Mai University/Chiang Mai.
Badulis และผู้แต่งคนอื่นๆ. Risk assessment from potential weathering characteristics of Mae Moh lignite mine and power plant wastes Mae Moh district Lampang province. . Chiang Mai:Chiang Mai University, 1998.
Badulis และผู้แต่งคนอื่นๆ. (1998) Risk assessment from potential weathering characteristics of Mae Moh lignite mine and power plant wastes Mae Moh district Lampang province . Chiang Mai University/Chiang Mai.