You can open and download instructional file of Assoc. Prof. Dr. Suwattanee Kooptiwut
at http://www.ps2.si.mahidol.ac.th/pels/pluginfile.php/7845/mod_resource/content/1/1-s2.0-S0303720712003358-main.pdf
You can open and download instructional file of Assoc. Prof. Dr. Suwattanee Kooptiwut
at http://www.ps2.si.mahidol.ac.th/pels/pluginfile.php/7845/mod_resource/content/1/1-s2.0-S0303720712003358-main.pdf