John Walsh และ Sittichai Anantarangsi. (2008) The Perceptions of Thai Manufacturers toward Training Courses Provided by the Department of Skill Development. <i>NIDA Development Journal</i>, <i>48</i>(2), 49-63.John Walsh และ Sittichai Anantarangsi. "The Perceptions of Thai Manufacturers toward Training Courses Provided by the Department of Skill Development". NIDA Development Journal 48 (2008):49-63.John Walsh และ Sittichai Anantarangsi. The Perceptions of Thai Manufacturers toward Training Courses Provided by the Department of Skill Development. National Institute of Development Administration:ม.ป.ท. 2008.