Gaya APA
Mack, K, E. (1991).
Health Care Sales: New Strategies for Improving Quality, Client Relations, and Revenue .
Philadelphia:
Jossey Bass.
Gaya MLA
Mack, Ken, E.
"Health Care Sales: New Strategies for Improving Quality, Client Relations, and Revenue".
Philadelphia:
Jossey Bass,
1991.
Buku Text.