Supak Junsri และ Ake Choonhachatrachai. (2014) Factors influencing purchasing decision towards gelato ice cream. Stamford international university:ม.ป.ท.Supak Junsri และ Ake Choonhachatrachai. 2014. Factors influencing purchasing decision towards gelato ice cream. ม.ป.ท.:Stamford international university;Supak Junsri และ Ake Choonhachatrachai. Factors influencing purchasing decision towards gelato ice cream. ม.ป.ท.:Stamford international university, 2014. Print.