Sichanh และ Himpaphanh. (1993) Knowledge and perception of housewives to achieve the basic minimum needs (BMN) in sanitation in Nakorn Ratchasima province, Thailand. Mahidol University,:ม.ป.ท.Sichanh และ Himpaphanh. 1993. Knowledge and perception of housewives to achieve the basic minimum needs (BMN) in sanitation in Nakorn Ratchasima province, Thailand. ม.ป.ท.:Mahidol University,;Sichanh และ Himpaphanh. Knowledge and perception of housewives to achieve the basic minimum needs (BMN) in sanitation in Nakorn Ratchasima province, Thailand. ม.ป.ท.:Mahidol University, 1993. Print.