[1] Univ Econ Ho Chi Minh City, Coll Econ Law & Govt, Sch Publ Finance, Ho Chi Minh, Vietnam
[2] Ritsumeikan Asia Pacific Univ, Coll Int Management, Beppu, Oita, Japan
[3] Univ Econ Ho Chi Minh City, Coll Econ Law & Govt, Sch Publ Finance, 59 C,Nguyen Dinh Chieu St, Ho Chi Minh 700000, Vietnam