7PORTER L W, STEER R M. Organizational, work, and per-sonal factors in employee turnover and absenteeism[J]. Psy- chological Bulletin, 1973,80(2) : 151- t76.
8MOBLEY W H. Intermeidate linkage in the relationship be tween job satisfaction and employee turnover[J]. Journal of Applied Psychology, 1977,62 : 237- 240.
9MOBLEY W H, HORNER S O, HOLLINGWORTH A T. An evaluation of precursors of hospital employee turnover [J]. Journal of Applied Psychology, 1978,63 (4) : 408- 414.
10GOULDNERA W. The Norm of Reciprocity: A Preliminary Statement[J]. American Sociological Review, 1960,25~ 161 -178.
