1
od Ta, Huu Phuong.
Wydane 1989
“...National University of Singapore. Faculty of Business Administration....”Wydane 1989
Książka
2
Wydane 1983
“...National University of Singapore. Faculty of Business Administration....”
Czasopismo
3
Wydane 1992
“...National University of Singapore. Faculty of Business Administration....”
Czasopismo