Glynda Lomax has published several books, many on spiritual warfare. All available on Amazon. I have read, The Wilderness Companion–in one sitting. Glynda has a great writing style; but, this book bore witness to tremendous walking-on-water faith.
Some of her books are featured with links in the right column–just scroll.
If you are looking to support a ministry, Wings of Prophecy is a good choice. Money should be spent on His children in these last days.