John Milton, Henry John Todd (1852). “The Poetical Works of John Milton: With Notes of Various Authors; and with Some Account of the Life and Writings of Milton, Derived Principally from Original Documents in Her Majesty's State-paper Office”, p.412
Osho, Rajneesh (Bhagwan Shree), Yoga Rabiya (Ma.), Ananda Vandana (Ma.), Prem Pankaja (Ma.) (1978). “The Discipline of Transcendence: Discourses on the Forty-two Sutras of Buddha”