Pornphan Thanomrattana และ Sripathum Noom-ura. (2009) Comparison of teenagers' satisfaction with Wall's and Nestle ice cream :. Thammasat University:ม.ป.ท.Pornphan Thanomrattana และ Sripathum Noom-ura. 2009. Comparison of teenagers' satisfaction with Wall's and Nestle ice cream :. ม.ป.ท.:Thammasat University;Pornphan Thanomrattana และ Sripathum Noom-ura. Comparison of teenagers' satisfaction with Wall's and Nestle ice cream :. ม.ป.ท.:Thammasat University, 2009. Print.