Lynn M., Le J.-M., Sherwyn D.S. Reach Out and Touch Your Customers // Cornell Hospitality Quarterly. 1998. June 1. Vol. 39. No. 3. Pp. 60–65 // .
127
Remland M. S., Jones T. S., Brinkman H. Proxemic and Haptic Behavior in Three European Countries // Journal of Nonverbal Behavior. 1991. December. Vol. 15. No. 4. Pp. 215–232 // .
