Here are some resources you need in your church technical library. Click to see more or to order.
(picture not available) Basics of Video Sound
Audio Systems Design and Installation
Handbook
for Sound Engineers: The New Audio Cyclopedia
Sound
Studio Construction on a Budget
On Location
Recording Techniques
Acoustics - Architecture,
Engineering, the Environment
(picture not available) The Master Handbook of Acoustics
(picture not available) Architectural Acoustics