Sarika Ketklao. 2003. Persuasive communication in insurance sales. Field of Study Language and Culture for Communication and Development, Mahidol University;
Sarika Ketklao. (2003) Persuasive communication in insurance sales . Mahidol University/Bangkok.
Sarika Ketklao. Persuasive communication in insurance sales. . Bangkok:Mahidol University, 2003.
Sarika Ketklao. (2003) Persuasive communication in insurance sales . Mahidol University/Bangkok.