Keratikarn Kladsawas. 2001. Preventive behavior toward human immunodeficiency virus infection of junior high school students in Songkhla province. Field of Study Epidemiology, Mahidol University;

Keratikarn Kladsawas. Preventive behavior toward human immunodeficiency virus infection of junior high school students in Songkhla province. . Bangkok:Mahidol University, 2001.

Keratikarn Kladsawas. (2001) Preventive behavior toward human immunodeficiency virus infection of junior high school students in Songkhla province . Mahidol University/Bangkok.