Wichanan Phongsri. 2007. The creative integrated tourism model in Amphoe Khongjeam, Ubonratchathani province, Thailand. Field of Study Environmental Planning for Community and Rural Development, Mahidol University;
Wichanan Phongsri. (2007) The creative integrated tourism model in Amphoe Khongjeam, Ubonratchathani province, Thailand . Mahidol University/Bangkok.
Wichanan Phongsri. The creative integrated tourism model in Amphoe Khongjeam, Ubonratchathani province, Thailand. . Bangkok:Mahidol University, 2007.
Wichanan Phongsri. (2007) The creative integrated tourism model in Amphoe Khongjeam, Ubonratchathani province, Thailand . Mahidol University/Bangkok.