* Corresponding author. Tel.: þ668 40042689; fax: þ662 441 9322.
E-mail addresses: panjaburee_p@hotmail.com (P. Panjaburee), gjhwang@mail.nutn.edu.tw (G.-J. Hwang), wtriampo@gmail.com, scwtr@mahidol.ac.th (W. Triampo),
shallmay14@gmail.com (B.-Y. Shih).
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Computers & Education
journal homepage: www.elsevier.com/locate/compedu
0360-1315/$ e see front matter 2010 Elsevier Ltd. All rights reserved.
doi:10.1016/j.compedu.2010.02.015