Lagace, R. R., Castleberry, S. B. and Ridnour, R. E. (1993) “An Exploratory Salesforce Study Of The Relationship Between Leader-Member Exchange And Motivation, Role Stress, And Manager Evaluation”, Journal of Applied Business Research (JABR), 9(4), pp. 110–119. doi: 10.19030/jabr.v9i4.6001.