Graham, J. (1980) "Cross-cultural sales negotiations: a multilevel analysis." Ph.D. dissertationUniversity of California , Berkeley.
2.
Kelley, H. (1966) "A classroom study of the dilemmas in interpersonal negotiations," in D. Archibald (ed.) Strategic Interaction and Conflict.Berkeley: Berkeley Institute of International Studies, University of California.
3.
Neu, J. ( 1985) "A multivariate sociolinguistic analysis of the speech event negotiation." Ph.D. dissertationUniversity of Southern California.
4.
Wolfson, N. (1976) "Speech events and natural speech: some implications for sociolinguistic methodology."Language in Society5: 189-209.