Peekamon Ponmanee และ Pitsanupong Kanjanapayont. (2013) Strain Analysis of Rocks in Lansang Waterfall, Tak Province, Northwestern Thailand. <i>Bulletin of Earth Sciences of Thailand (BEST)</i>, <i>6</i>(1), 40-50.Peekamon Ponmanee และ Pitsanupong Kanjanapayont. "Strain Analysis of Rocks in Lansang Waterfall, Tak Province, Northwestern Thailand". Bulletin of Earth Sciences of Thailand (BEST) 6 (2013):40-50.Peekamon Ponmanee และ Pitsanupong Kanjanapayont. Strain Analysis of Rocks in Lansang Waterfall, Tak Province, Northwestern Thailand. Department of Geology, Chulalongkorn University:ม.ป.ท. 2013.