Chang และผู้แต่งคนอื่นๆ. 1999. HIV/AIDS preventive behavior (condom use) and its determinants among female commercial sex workers in Beijing, China /Chang Chun. Faculty of Graduate Studies, Mahidol University;
Chang และผู้แต่งคนอื่นๆ. (1999) HIV/AIDS preventive behavior (condom use) and its determinants among female commercial sex workers in Beijing, China /Chang Chun . Mahidol University/Bangkok.
Chang และผู้แต่งคนอื่นๆ. HIV/AIDS preventive behavior (condom use) and its determinants among female commercial sex workers in Beijing, China /Chang Chun. . Bangkok:Mahidol University, 1999.
Chang และผู้แต่งคนอื่นๆ. (1999) HIV/AIDS preventive behavior (condom use) and its determinants among female commercial sex workers in Beijing, China /Chang Chun . Mahidol University/Bangkok.