digi.library.tu.ac.th - /research_paper/122/


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10/14/2016 1:16 PM 486136 01title-abstract.pdf
10/14/2016 1:16 PM 468100 02chapter1.pdf
10/14/2016 1:16 PM 927021 03chapter2.pdf
10/14/2016 1:16 PM 516100 04chapter3.pdf
10/14/2016 1:16 PM 539902 05chapter4.pdf
10/14/2016 1:16 PM 511484 06chapter5.pdf
10/14/2016 1:16 PM 715733 07references-appendices.pdf