Hien และผู้แต่งคนอื่นๆ. 2007. Teachers' and administrators' perception of Asean cooperation in tourism training case studies of Thailand and VietnamHien Nguyen. Field of Study Educational Management, Mahidol University;
Hien และผู้แต่งคนอื่นๆ. (2007) Teachers' and administrators' perception of Asean cooperation in tourism training case studies of Thailand and VietnamHien Nguyen . Mahidol University/Bangkok.
Hien และผู้แต่งคนอื่นๆ. Teachers' and administrators' perception of Asean cooperation in tourism training case studies of Thailand and VietnamHien Nguyen. . Bangkok:Mahidol University, 2007.
Hien และผู้แต่งคนอื่นๆ. (2007) Teachers' and administrators' perception of Asean cooperation in tourism training case studies of Thailand and VietnamHien Nguyen . Mahidol University/Bangkok.