Sombat Anggulpiriya และ Donn Pjongluck. (2015) A study on the influence of marketing mix on decision making to buy food supplement by thai online customers. Stamford Internatioanl University:ม.ป.ท.Sombat Anggulpiriya และ Donn Pjongluck. 2015. A study on the influence of marketing mix on decision making to buy food supplement by thai online customers. ม.ป.ท.:Stamford Internatioanl University;Sombat Anggulpiriya และ Donn Pjongluck. A study on the influence of marketing mix on decision making to buy food supplement by thai online customers. ม.ป.ท.:Stamford Internatioanl University, 2015. Print.