Wassana Im-em,Wassana Im-em..[et al.]. 2001. Knowledge and attitudes of older people about HIV/AIDS in Thailand : a comparison with young adults /Wassana Im-em..[et al.]. Nakhon Pathom:Institute for Population and Social Research Mahidol University;

Wassana Im-em,Wassana Im-em..[et al.]. Knowledge and attitudes of older people about HIV/AIDS in Thailand : a comparison with young adults /Wassana Im-em..[et al.]. Nakhon Pathom:Institute for Population and Social Research Mahidol University, 2001. Print.

Wassana Im-em,Wassana Im-em..[et al.]. (2001) Knowledge and attitudes of older people about HIV/AIDS in Thailand : a comparison with young adults /Wassana Im-em..[et al.]. Institute for Population and Social Research Mahidol University:Nakhon Pathom.