5Luthans F,Luthans K W,Luthans B C.Positive psychological capital:beyond human and social capital[J].Business Hori-zons,2004,47(1):45-50.
6Luthans F,Youssef C M,Avolio B J.Psychological capital:developing the human capital edge[M].UK:Oxford University Press,2007:1-6.
7Vogt H B.Evidence-based medicine[J].S D Med,2006,59(3):95-96.
8Shin I S, Kim J H.The effect of problem-based learning in nursing education : a meta-analysis[J].2013, 18 ( 5 ) : 1103-1120.
9Young A J.The challenge: shifting the motivational climate of the college classroom for enhanced learning college teaching[J]. College Teaching, 2003, 54 (4) : 127-130.
10Zhan Z Q.Areas of vocational education research[M].Germany: Springer, 2014: 167-188.
