Vichit Lorchirachoonkul และผู้แต่งคนอื่นๆ. (2008) Technical Efficiencies and Efficiency Changes of Thai Non-Life Insurance Companies. <i>NIDA Development Journal</i>, <i>48</i>(3), 141-189.Vichit Lorchirachoonkul และผู้แต่งคนอื่นๆ. "Technical Efficiencies and Efficiency Changes of Thai Non-Life Insurance Companies". NIDA Development Journal 48 (2008):141-189.Vichit Lorchirachoonkul และผู้แต่งคนอื่นๆ. Technical Efficiencies and Efficiency Changes of Thai Non-Life Insurance Companies. National Institute of Development Administration:ม.ป.ท. 2008.