Highly recommended – books by Yoga Niketan.
Texts paint somewhat different picture about the story Yogananda shares in His book.
The Scriptural Commentaries of
Yogiraj Sri Sri Shyama Charan Lahiri Mahasaya: Volume 2
The Scriptural Commentaries of
Yogiraj Sri Sri Shyama Charan Lahiri Mahasaya: Volume 1
Kriya Yoga
A Collection of Biographies
of 4 Kriya Yoga Gurus