Suksamai Sompongsa. (1999) Health information system reform for improving health center effectiveness in Sakon Nakhon province. Mahidol University,:ม.ป.ท.Suksamai Sompongsa. 1999. Health information system reform for improving health center effectiveness in Sakon Nakhon province. ม.ป.ท.:Mahidol University,;Suksamai Sompongsa. Health information system reform for improving health center effectiveness in Sakon Nakhon province. ม.ป.ท.:Mahidol University, 1999. Print.