Ali S.M. และ Younus. (1992) Behaviour of mothers during their puerperal period a study in Prachinburi provincial hospital Thailand. Mahidol University,:ม.ป.ท.Ali S.M. และ Younus. 1992. Behaviour of mothers during their puerperal period a study in Prachinburi provincial hospital Thailand. ม.ป.ท.:Mahidol University,;Ali S.M. และ Younus. Behaviour of mothers during their puerperal period a study in Prachinburi provincial hospital Thailand. ม.ป.ท.:Mahidol University, 1992. Print.