Krittaya Pattamalai. 2002. Heat treatment of some corundum from Madagascar. Field of Study Geology, Chulalongkorn University;
Krittaya Pattamalai. (2002) Heat treatment of some corundum from Madagascar . Chulalongkorn University/Bangkok.
Krittaya Pattamalai. Heat treatment of some corundum from Madagascar. . Bangkok:Chulalongkorn University, 2002.
Krittaya Pattamalai. (2002) Heat treatment of some corundum from Madagascar . Chulalongkorn University/Bangkok.