Ailan และผู้แต่งคนอื่นๆ. 1998. Psychosocial factors associated with sexual and contraceptive behavior among unmarried university students in Beijing, China. Faculty of Graduate Studies, Mahidol University;
Ailan และผู้แต่งคนอื่นๆ. (1998) Psychosocial factors associated with sexual and contraceptive behavior among unmarried university students in Beijing, China . Mahidol University/Bangkok.
Ailan และผู้แต่งคนอื่นๆ. Psychosocial factors associated with sexual and contraceptive behavior among unmarried university students in Beijing, China. . Bangkok:Mahidol University, 1998.
Ailan และผู้แต่งคนอื่นๆ. (1998) Psychosocial factors associated with sexual and contraceptive behavior among unmarried university students in Beijing, China . Mahidol University/Bangkok.