Wanpen Ma-Un. (1997) The risk perception and the change of sexual risk behavior associated with HIV/AIDS among Thai women /. Mahidol University,:ม.ป.ท.Wanpen Ma-Un. 1997. The risk perception and the change of sexual risk behavior associated with HIV/AIDS among Thai women /. ม.ป.ท.:Mahidol University,;Wanpen Ma-Un. The risk perception and the change of sexual risk behavior associated with HIV/AIDS among Thai women /. ม.ป.ท.:Mahidol University, 1997. Print.