This is a commentary on the seventh Book of the Abhidhamma: Patthana - "The Book of Causal Relations". Which is the most important and voluminous book of the Abhidhamma Pitaka, by the late renowned Burmese scholar monk, Ashin Janakabhivamsa. (Please Note: the text is in Burmese script)
Download for PDF: Introduction to Basic Pathana — Ashin Janakabhivamsa. (Burmese Script)