อ้างอิง ของ ระบบเสียง

  1. ↑ Bruce Borgerson (November 1, 2003). Sound & Video Contractor (Prism Business Media). http://svconline.com/mag/avinstall_pa_sr/index.html. Retrieved February 18, 2007.
  2. ↑ Davis, Gary, and Ralph Jones. Sound Reinforcement Handbook. 2nd ed. Milwaukee: Hal Leonard Corporation, 1989: 4.
  3. ↑ Eargle, John, and Chris Foreman. Audio Engineering for sound reinforcement. Milwaukee: Hal Leonard Corporation, 2002. 299