Research : 2012
By admin | 11-7-2019 13:50

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Songtham, W., Jintasakul, P., Chitnarin,  A.  Sustainable Development of
               Geological Resources in Nakhon Ratchasima Province, NE Thailand. 
               International UNESCO Conference on Geoparks. Unzen Volcanic Area Global 
               Geopark, Japan.  May 12-15,2012. P.82.  (PDF.File) 

Songtham, W., Duangkrayom, J.,  Jintasakul , P.   An Australasian Tektite from the Yasothon Soil Series, 
                      Noen Sa-nga, Chaiyaphum, Northeastern Thailand. Acta Geoscientica Sinica. 

                      Link Here : http://en.cnki.com.cn/Journal_en/A-A011-DQXB-2012-S1.htm