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First Author:
 
Nathapornpan Uttama
Economics Program, School of Management, Mae Fah Luang University
nathapornpan@mfu.ac.th
 
333 Moo 1, Tasud
Muang, 57100, Thailand
 
+6653916680(Phone)
+6653916680(Fax)
mfu.ac.th

Second Author:

Popkarn Arwatchanakarn
Mae Fah Luang University
popkarn.arw@mfu.ac.th
 
 
 
 
http://