Keim และผู้แต่งคนอื่นๆ. (2014) Engagement 2.0 - could enterprise 2.0 really improve the work engagement of your employees?. National Institute of Development Administration:ม.ป.ท.Keim และผู้แต่งคนอื่นๆ. 2014. Engagement 2.0 - could enterprise 2.0 really improve the work engagement of your employees?. ม.ป.ท.:National Institute of Development Administration;Keim และผู้แต่งคนอื่นๆ. Engagement 2.0 - could enterprise 2.0 really improve the work engagement of your employees?. ม.ป.ท.:National Institute of Development Administration, 2014. Print.