APA Style
Swapan, C, H, D, S, A, A, Z.
(2010).
SIP Trunking
.
:
.
MLA Style
Swapan, Christina, Hattingh,, Darryl, Sladden, And, ATM, Zakaria.
"SIP Trunking".
:
,
2010.
Information Technology.