Pham และผู้แต่งคนอื่นๆ. 1998. Delay to receive emergency obstetric care in Thai-binh, Vietnam : quality of care analysis and socio-cultural, psychological factors affecting decision to seek care. Faculty of Graduate Studies, Mahidol University;
Pham และผู้แต่งคนอื่นๆ. (1998) Delay to receive emergency obstetric care in Thai-binh, Vietnam : quality of care analysis and socio-cultural, psychological factors affecting decision to seek care . Mahidol University/Bangkok.
Pham และผู้แต่งคนอื่นๆ. Delay to receive emergency obstetric care in Thai-binh, Vietnam : quality of care analysis and socio-cultural, psychological factors affecting decision to seek care. . Bangkok:Mahidol University, 1998.
Pham และผู้แต่งคนอื่นๆ. (1998) Delay to receive emergency obstetric care in Thai-binh, Vietnam : quality of care analysis and socio-cultural, psychological factors affecting decision to seek care . Mahidol University/Bangkok.