©2013 National Research Council of Thailand
Piyasak Pongsiri. 2006. Leadership style of superintendent of metropolitan. Field of Study Public Administration, Mahidol University;
Piyasak Pongsiri. (2006) Leadership style of superintendent of metropolitan . Mahidol University/Bangkok.
Piyasak Pongsiri. Leadership style of superintendent of metropolitan. . Bangkok:Mahidol University, 2006.
Piyasak Pongsiri. (2006) Leadership style of superintendent of metropolitan . Mahidol University/Bangkok.