Jittasak Putjorn. 2009. ASEAN tourism image positioning : the case study of Thailand. Bangkok:Silpakorn University;
Jittasak Putjorn. (2009) ASEAN tourism image positioning : the case study of Thailand. Silpakorn University:Bangkok.
Jittasak Putjorn. ASEAN tourism image positioning : the case study of Thailand. Bangkok:Silpakorn University, 2009. Print.
Jittasak Putjorn. (2009) ASEAN tourism image positioning : the case study of Thailand. Silpakorn University:Bangkok.