Poramaphorn Prongjai. 2004. Selected demographic and communication factors related to job motivation of baggage screening officers at Bangkok International Airport (BIA). Field of Study Development Communication, Kasetsart University;
Poramaphorn Prongjai. (2004) Selected demographic and communication factors related to job motivation of baggage screening officers at Bangkok International Airport (BIA) . Kasetsart University/Bangkok.
Poramaphorn Prongjai. Selected demographic and communication factors related to job motivation of baggage screening officers at Bangkok International Airport (BIA). . Bangkok:Kasetsart University, 2004.
Poramaphorn Prongjai. (2004) Selected demographic and communication factors related to job motivation of baggage screening officers at Bangkok International Airport (BIA) . Kasetsart University/Bangkok.