Pichate Siriratanapaisalkul. (2000) Computer assisted learning : SPSS for Windows on internet. Mahidol University,:ม.ป.ท.Pichate Siriratanapaisalkul. 2000. Computer assisted learning : SPSS for Windows on internet. ม.ป.ท.:Mahidol University,;Pichate Siriratanapaisalkul. Computer assisted learning : SPSS for Windows on internet. ม.ป.ท.:Mahidol University, 2000. Print.