digi.library.tu.ac.th - /thesis/ac/0447/


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10/31/2017 10:28 AM 1455840 01title-abstract.pdf
10/13/2016 9:23 AM 493835 01title-abstract1.pdf
10/13/2016 9:23 AM 516939 02page2-29.pdf
10/13/2016 9:23 AM 481776 03references-tables.pdf