Vu และ Ngoc Bao. (1997) Psycho-social and cultural factors affecting modern contraceptive practice among women seeking pregnancy termination in Hanoi, Vietnam. Mahidol University,:ม.ป.ท.Vu และ Ngoc Bao. 1997. Psycho-social and cultural factors affecting modern contraceptive practice among women seeking pregnancy termination in Hanoi, Vietnam. ม.ป.ท.:Mahidol University,;Vu และ Ngoc Bao. Psycho-social and cultural factors affecting modern contraceptive practice among women seeking pregnancy termination in Hanoi, Vietnam. ม.ป.ท.:Mahidol University, 1997. Print.