Stuelz และผู้แต่งคนอื่นๆ. 1991. Pregnancy risk, relative economical household status and perception of the mother versus site of delivery in Prajinburi province. Faculty of Graduate Studies, Mahidol University;
Stuelz และผู้แต่งคนอื่นๆ. (1991) Pregnancy risk, relative economical household status and perception of the mother versus site of delivery in Prajinburi province . Mahidol University/Bangkok.
Stuelz และผู้แต่งคนอื่นๆ. Pregnancy risk, relative economical household status and perception of the mother versus site of delivery in Prajinburi province. . Bangkok:Mahidol University, 1991.
Stuelz และผู้แต่งคนอื่นๆ. (1991) Pregnancy risk, relative economical household status and perception of the mother versus site of delivery in Prajinburi province . Mahidol University/Bangkok.