©2013 National Research Council of Thailand
Kanyarat Khotchanin. 2010. Heat treatment of non-gem blue supphire. Faculty of Science, Chiang Mai University;
Kanyarat Khotchanin. (2010) Heat treatment of non-gem blue supphire . Chiang Mai University/Chiang Mai.
Kanyarat Khotchanin. Heat treatment of non-gem blue supphire. . Chiang Mai:Chiang Mai University, 2010.
Kanyarat Khotchanin. (2010) Heat treatment of non-gem blue supphire . Chiang Mai University/Chiang Mai.