Prakong Vithayasai,Vicharn Vithayasai. 1994. Atlas of HIV infection. Chiang Mai:Chiang Mai University;
Prakong Vithayasai,Vicharn Vithayasai. (1994) Atlas of HIV infection. Chiang Mai University:Chiang Mai.
Prakong Vithayasai,Vicharn Vithayasai. Atlas of HIV infection. 2nd ed. Chiang Mai:Chiang Mai University, 1994. Print.
Prakong Vithayasai,Vicharn Vithayasai. (1994) Atlas of HIV infection. Chiang Mai University:Chiang Mai.