Wanpen Ma-Un. 1997. The risk perception and the change of sexual risk behavior associated with HIV/AIDS among Thai women /Wanpen Ma-Un. Faculty of Graduate Studies, Mahidol University;
Wanpen Ma-Un. (1997) The risk perception and the change of sexual risk behavior associated with HIV/AIDS among Thai women /Wanpen Ma-Un . Mahidol University/Bangkok.
Wanpen Ma-Un. The risk perception and the change of sexual risk behavior associated with HIV/AIDS among Thai women /Wanpen Ma-Un. . Bangkok:Mahidol University, 1997.
Wanpen Ma-Un. (1997) The risk perception and the change of sexual risk behavior associated with HIV/AIDS among Thai women /Wanpen Ma-Un . Mahidol University/Bangkok.