Wasant Tankaya. 2001. Implication of geochemistry on depositional environments in Mae Moh coal field Changwat Lampang. Field of Study Geology, Chiang Mai University;
Wasant Tankaya. (2001) Implication of geochemistry on depositional environments in Mae Moh coal field Changwat Lampang . Chiang Mai University/Chiang Mai.
Wasant Tankaya. Implication of geochemistry on depositional environments in Mae Moh coal field Changwat Lampang. . Chiang Mai:Chiang Mai University, 2001.
Wasant Tankaya. (2001) Implication of geochemistry on depositional environments in Mae Moh coal field Changwat Lampang . Chiang Mai University/Chiang Mai.