Gaya APA
Solomon, M. (1988).
"What Do I Say When...": A Guidebook for Getting Your Way With People on the Job .
usa:
Prentice-Hall.
Gaya MLA
Solomon, Muriel.
""What Do I Say When...": A Guidebook for Getting Your Way With People on the Job".
usa:
Prentice-Hall,
1988.
Buku.