Hathaikan Chaichomphoo. (1997) A study of unit cost of inpatient services at medical wards, Theptarin Hospital. Mahidol University,:ม.ป.ท.Hathaikan Chaichomphoo. 1997. A study of unit cost of inpatient services at medical wards, Theptarin Hospital. ม.ป.ท.:Mahidol University,;Hathaikan Chaichomphoo. A study of unit cost of inpatient services at medical wards, Theptarin Hospital. ม.ป.ท.:Mahidol University, 1997. Print.