Xiao และ Yu. (2000) <The> effect of women's employment on breast-feeding in urban areas of Sichuan, China. Mahidol University,:ม.ป.ท.Xiao และ Yu. 2000. <The> effect of women's employment on breast-feeding in urban areas of Sichuan, China. ม.ป.ท.:Mahidol University,;Xiao และ Yu. <The> effect of women's employment on breast-feeding in urban areas of Sichuan, China. ม.ป.ท.:Mahidol University, 2000. Print.