Nikhen Gopali และ Donn Pjongluck. (2014) A study towards service quality variables influencing customer satisfaction and loyalty in supermarket in Bangkapi district, Bangkok. Stamford International University:ม.ป.ท.Nikhen Gopali และ Donn Pjongluck. 2014. A study towards service quality variables influencing customer satisfaction and loyalty in supermarket in Bangkapi district, Bangkok. ม.ป.ท.:Stamford International University;Nikhen Gopali และ Donn Pjongluck. A study towards service quality variables influencing customer satisfaction and loyalty in supermarket in Bangkapi district, Bangkok. ม.ป.ท.:Stamford International University, 2014. Print.