Wen และ Xing. (1991) Effects of breast-feeding and related factors on diarrhea of babies 6-18 months in Sampran district Nakhon Pathom province Thailand. Mahidol University,:ม.ป.ท.Wen และ Xing. 1991. Effects of breast-feeding and related factors on diarrhea of babies 6-18 months in Sampran district Nakhon Pathom province Thailand. ม.ป.ท.:Mahidol University,;Wen และ Xing. Effects of breast-feeding and related factors on diarrhea of babies 6-18 months in Sampran district Nakhon Pathom province Thailand. ม.ป.ท.:Mahidol University, 1991. Print.