Siwaporn Proyanont. (2012) Leader behaviors and Work environments that affect creativity at work. A case study of Thailand's Most Innovative Companies 2009. <i>NIDA Development Journal</i>, <i>52</i>(3), 193-214.Siwaporn Proyanont. "Leader behaviors and Work environments that affect creativity at work. A case study of Thailand's Most Innovative Companies 2009". NIDA Development Journal 52 (2012):193-214.Siwaporn Proyanont. Leader behaviors and Work environments that affect creativity at work. A case study of Thailand's Most Innovative Companies 2009. National Institute of Development Administration:ม.ป.ท. 2012.