Gaya APA
Flagg, D. (2009).
Surviving Dreaded Conversations : Talk Throught Any Difficult Situation at Work .
America:
Mc Graw-Hill.
Gaya MLA
Flagg, Donna.
"Surviving Dreaded Conversations : Talk Throught Any Difficult Situation at Work".
America:
Mc Graw-Hill,
2009.
Buku.