Alisa Wichaidit และ Prannapha Modehiran. (2014) NEEDS ANALYSIS IN ENGLISH ORAL COMMUNICATION OF THAI TOURIST GUIDES. Chulalongkorn University:ม.ป.ท.Alisa Wichaidit และ Prannapha Modehiran. 2014. NEEDS ANALYSIS IN ENGLISH ORAL COMMUNICATION OF THAI TOURIST GUIDES. ม.ป.ท.:Chulalongkorn University;Alisa Wichaidit และ Prannapha Modehiran. NEEDS ANALYSIS IN ENGLISH ORAL COMMUNICATION OF THAI TOURIST GUIDES. ม.ป.ท.:Chulalongkorn University, 2014. Print.