曾智辉. (2010). 电话营销管理: Tele-marketing & tele-sales management. 凤凰出版社.
Lua i Stíl Chicago (17ú heag.)曾智辉. 电话营销管理: Tele-marketing & Tele-sales Management. 凤凰出版社, 2010.
Lua MLA (8ú heag.)曾智辉. 电话营销管理: Tele-marketing & Tele-sales Management. 凤凰出版社, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.