Cousins, L.S. 2001. On the Vibhajjavadins: The Mahimsasaka, Dhammaguttaka, Kassapiya and Tambapanniya branches of the ancient Theriyas. Buddhist Studies Review. 18, 2 (May 2001), 131–182. DOI:https://doi.org/10.1558/bsrv.v18i2.14449.