Norman KR. Abhidhamma-pitaka: Yamaka (Vols I and II, £16 each), Tika-patthana, Duka-patthana I (£19.50 each). Edited by C.A.F. Rhys Davids. BSRV. 1989;6(1):82-84. doi:10.1558/bsrv.v6i1.15901