Naris Lao-anuson และ Sarawute Chantraprasert. (2011) Structural Geology of Copper Deposit in the Puthep 1 Area, Loei Province: Interpretation from Resistivity and Induced Polarization Data. <i>Bulletin of Earth Sciences of Thailand (BEST)</i>, <i>4</i>(1), 31-43.Naris Lao-anuson และ Sarawute Chantraprasert. "Structural Geology of Copper Deposit in the Puthep 1 Area, Loei Province: Interpretation from Resistivity and Induced Polarization Data". Bulletin of Earth Sciences of Thailand (BEST) 4 (2011):31-43.Naris Lao-anuson และ Sarawute Chantraprasert. Structural Geology of Copper Deposit in the Puthep 1 Area, Loei Province: Interpretation from Resistivity and Induced Polarization Data. Department of Geology, Chulalongkorn University:ม.ป.ท. 2011.