Annika Soontornchot และ Boonyarat Samphanwattanachai. (2016) The relationship study of service marketing mix theory and customer satisfaction of Thais and Foreigners towards the Spas in Chatuchak Area Bangkok. Stamford International University:ม.ป.ท.Annika Soontornchot และ Boonyarat Samphanwattanachai. 2016. The relationship study of service marketing mix theory and customer satisfaction of Thais and Foreigners towards the Spas in Chatuchak Area Bangkok. ม.ป.ท.:Stamford International University;Annika Soontornchot และ Boonyarat Samphanwattanachai. The relationship study of service marketing mix theory and customer satisfaction of Thais and Foreigners towards the Spas in Chatuchak Area Bangkok. ม.ป.ท.:Stamford International University, 2016. Print.