Sansanee Neamnak และ Chompunuch Jittithavorn. (2013) A study of tourists satisfaction towards Kamphaeng Phet historical park. Stamford International University:ม.ป.ท.Sansanee Neamnak และ Chompunuch Jittithavorn. 2013. A study of tourists satisfaction towards Kamphaeng Phet historical park. ม.ป.ท.:Stamford International University;Sansanee Neamnak และ Chompunuch Jittithavorn. A study of tourists satisfaction towards Kamphaeng Phet historical park. ม.ป.ท.:Stamford International University, 2013. Print.