Surin Intayot. 2000. Mineralogy and petrography of skarn at Khao Phra Ngam area, Amphoe Muang, Changwat Lopburi. Department of Geology, Chulalongkorn University;
Surin Intayot. (2000) Mineralogy and petrography of skarn at Khao Phra Ngam area, Amphoe Muang, Changwat Lopburi . Chulalongkorn University/Bangkok.
Surin Intayot. Mineralogy and petrography of skarn at Khao Phra Ngam area, Amphoe Muang, Changwat Lopburi. . Bangkok:Chulalongkorn University, 2000.
Surin Intayot. (2000) Mineralogy and petrography of skarn at Khao Phra Ngam area, Amphoe Muang, Changwat Lopburi . Chulalongkorn University/Bangkok.