Gaya APA
Business and administrative communication. (2015).
New York:
Mc Graw Hill Education.
Gaya Chicago
Business and administrative communication.
II.
New York:
Mc Graw Hill Education,
2015.
Buku.
Gaya MLA
Business and administrative communication.
II.
New York:
Mc Graw Hill Education,
2015.
Buku.
Gaya Turabian
Business and administrative communication.
New York:
Mc Graw Hill Education,
2015.
Buku.