Le และ Thanh Liem. (1999) Patient's delay in seeking treatment for pulmonary tuberculosis among adult population in Long An province, Vietnam. Mahidol University,:ม.ป.ท.Le และ Thanh Liem. 1999. Patient's delay in seeking treatment for pulmonary tuberculosis among adult population in Long An province, Vietnam. ม.ป.ท.:Mahidol University,;Le และ Thanh Liem. Patient's delay in seeking treatment for pulmonary tuberculosis among adult population in Long An province, Vietnam. ม.ป.ท.:Mahidol University, 1999. Print.