Library of Linguistics - The Good Speech is Deceptive Sum rtags bśad sbyar legs bśad gces bsdus Dbyaṅs-can-ṅag-dbaṅ., Chengdu : Si-khron mi rigs dpe skrun khaṅ : Si-khron Źiṅ-chen Źin-hwa dpe tshoṅ khaṅ gis bkram, 1989. 7540900954 A commentary on the Sum cu pa and Rtags kyi ʼjug pa, the two foundational 7th-century verse treatises on Tibetan grammar by Thon-mi Sambhoṭa