swami Satyananda Saraswati. (2013). Four Chapters on Freedom (1st.). Bihar School of Yoga.
Dyfyniad Arddull Chicagoswami Satyananda Saraswati. Four Chapters on Freedom. 1st. New Delhi: Bihar School of Yoga, 2013.
Dyfyniad MLAswami Satyananda Saraswati. Four Chapters on Freedom. 1st. Bihar School of Yoga, 2013.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.