Managerial antecendents and individual consequences of group cohesiveness in travel service selling / Kenneth R. Bartkus, Roy D. Howell, C.R. Michael Parent, Cathy L. Hartman. - 1997. // Journal of travel research. Vol. 35 (1996/97), No. 4
Bartkus, Kenneth R.. The performance trade-off between experience and motivation: its impact on travel service selling / Kenneth R. Bartkus, Cindy L. Hartman, C.R. Michael Parent. - 1994. // Journal of travel research. Vol. 33 (1994/95), No. 2
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