Latt และ Khaing Sabai. (1990) Risk approach and the outcomes of pregnancy among the at-risk pregnant mothers at the MCH Hospital in Ratchaburi province. Mahidol University,:ม.ป.ท.Latt และ Khaing Sabai. 1990. Risk approach and the outcomes of pregnancy among the at-risk pregnant mothers at the MCH Hospital in Ratchaburi province. ม.ป.ท.:Mahidol University,;Latt และ Khaing Sabai. Risk approach and the outcomes of pregnancy among the at-risk pregnant mothers at the MCH Hospital in Ratchaburi province. ม.ป.ท.:Mahidol University, 1990. Print.