Gaya APA
AZWIR, M., PRAMESTA, A, [.
(2014).
IMS (Ip Multimedia Subsystem} :
.
Yogyakarta:
Andi.
Gaya MLA
AZWIR, M.., PRAMESTA, Arie, [ed.].
"IMS (Ip Multimedia Subsystem} :".
Yogyakarta:
Andi,
2014.
Buku.