Preecha Kewsuk และผู้แต่งคนอื่นๆ. (2015) The Development of Operational Risk Management Strategy for the Office of Provincial Electricity Authority in Northern Region 2. <i>NIDA Development Journal</i>, <i>55</i>(1), 203-235.Preecha Kewsuk และผู้แต่งคนอื่นๆ. "The Development of Operational Risk Management Strategy for the Office of Provincial Electricity Authority in Northern Region 2". NIDA Development Journal 55 (2015):203-235.Preecha Kewsuk และผู้แต่งคนอื่นๆ. The Development of Operational Risk Management Strategy for the Office of Provincial Electricity Authority in Northern Region 2. National Institute of Development Administration:ม.ป.ท. 2015.