Chen Lixia และ Sumalee Tienthongdee. (2017) The relationship between teachers’ leadership styles and teaching quality in lower secondary schools in liang zhou district of wuwei, gansu, China. Mahidol University:ม.ป.ท.Chen Lixia และ Sumalee Tienthongdee. 2017. The relationship between teachers’ leadership styles and teaching quality in lower secondary schools in liang zhou district of wuwei, gansu, China. ม.ป.ท.:Mahidol University;Chen Lixia และ Sumalee Tienthongdee. The relationship between teachers’ leadership styles and teaching quality in lower secondary schools in liang zhou district of wuwei, gansu, China. ม.ป.ท.:Mahidol University, 2017. Print.