Prayer

With Christ in the School of Prayer by Murray, Andrew

https://www.ccel.org/ccel/murray/prayer.html

Power Through Prayer, E. M. Bounds

http://www.ntslibrary.com

The Weapon of Prayer, E.M. Bounds

http://ntslibrary.com/PDF%20Books/The%20Weapon%20of%20Prayer%20by%20EM%20Bounds.pdf