Tawatchai Keereecamsuk. (2000) Risk factors of hepatitis B surface carrier in Akha and Lisaw; hill-tribe, couple reproductive women. Mahidol University,:ม.ป.ท.Tawatchai Keereecamsuk. 2000. Risk factors of hepatitis B surface carrier in Akha and Lisaw; hill-tribe, couple reproductive women. ม.ป.ท.:Mahidol University,;Tawatchai Keereecamsuk. Risk factors of hepatitis B surface carrier in Akha and Lisaw; hill-tribe, couple reproductive women. ม.ป.ท.:Mahidol University, 2000. Print.