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ralph lauren polo

First Author:
Giam Quang Do
Chiangmai University and Hanoi University of Agriculture
E1/2-Ngo Xuan Quang Str., Trau Quy, Gia Lam
Hanoi, 84, Vietnam

Second Author:

Michael Mcaleer
Erasmus University Rotterdam and National Chung Hsing University
Perth, Perth
Western Australia 6000, Australia
(08) 9485 0002(Phone)

Third Author:

Songsak Sriboonchitta
Chiangmai University
239 Huay Keaw road, Muang district
Chiangmai, Thailand