Gaya APA
Suparmo, Ludwing. (2011).
Crisis Management & Public Relations Mengatasi Kiris, Memulihkan Citra .
Jakarta:
Indeks.
Gaya Chicago
Suparmo, Ludwing.
Crisis Management & Public Relations Mengatasi Kiris, Memulihkan Citra.
Jakarta:
Indeks,
2011.
Buku.
Gaya MLA
Suparmo, Ludwing.
Crisis Management & Public Relations Mengatasi Kiris, Memulihkan Citra.
Jakarta:
Indeks,
2011.
Buku.
Gaya Turabian
Suparmo, Ludwing.
Crisis Management & Public Relations Mengatasi Kiris, Memulihkan Citra.
Jakarta:
Indeks,
2011.
Buku.