Lua APA (7ú heag.)
Goncalves, F. E. (2010). Building telephony systems with OpenSIPS 1.6: Build scalable and robust telephony systems using SIP. Packt Pub..
Lua i Stíl Chicago (17ú heag.)
Goncalves, Flavio E. Building Telephony Systems with OpenSIPS 1.6: Build Scalable and Robust Telephony Systems Using SIP. Birmingham, U.K.: Packt Pub., 2010.
Lua MLA (9ú heag.)
Goncalves, Flavio E. Building Telephony Systems with OpenSIPS 1.6: Build Scalable and Robust Telephony Systems Using SIP. Packt Pub., 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.