APA-čujuhus (7. p.)
Merel, D., Dempster, B., & Gomillion, D. (2009). Asterisk 1.6: Build feature-rich telephony systems with Asterisk. Packt Pub..
Chicago-čujuhus (17. p.)
Merel, David, Barrie Dempster, juo David Gomillion. Asterisk 1.6: Build Feature-rich Telephony Systems with Asterisk. Birmingham, U.K.: Packt Pub., 2009.
MLA-čujuhus (9. p.)
Merel, David, et al. Asterisk 1.6: Build Feature-rich Telephony Systems with Asterisk. Packt Pub., 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.