brother Frank's book "Another Wave Rolls in", read by many entitled "Azusa Street" is readily available.
for me, it was the first non-canonical book i read on the Faith. (the second was "Life of Brainerd"..thank God)
brother Frank's other books are out of print, and for a while Google books had them, on line, but now they're gone.
I found this: "My Story: the Latter Rain" by Frank Bartleman. (don't let the "latter rain" throw you, it has little to do with the whole other movement)
you got a love a book, containing a brother's testimony, where the first line in the introduction is this:
"God knows I would rather die than to lead a single soul astray."
that's why i always loved reading dear Frank's words.
http://frankbartleman-story.blogspot.com/2008/10/preface.html
