Ha และผู้แต่งคนอื่นๆ. 1998. Factors affecting safe sex behavior for HIV/AIDS prevention among first year male college students in Mahidol University, Thailand /Ha Minh Son. Faculty of Graduate Studies, Mahidol University;
Ha และผู้แต่งคนอื่นๆ. (1998) Factors affecting safe sex behavior for HIV/AIDS prevention among first year male college students in Mahidol University, Thailand /Ha Minh Son . Mahidol University/Bangkok.
Ha และผู้แต่งคนอื่นๆ. Factors affecting safe sex behavior for HIV/AIDS prevention among first year male college students in Mahidol University, Thailand /Ha Minh Son. . Bangkok:Mahidol University, 1998.
Ha และผู้แต่งคนอื่นๆ. (1998) Factors affecting safe sex behavior for HIV/AIDS prevention among first year male college students in Mahidol University, Thailand /Ha Minh Son . Mahidol University/Bangkok.