Sarat Chandra Das [with Mkhan chen Bla ma Shes rab rgya mtsho and Mgron gnyer Bla ma U rgyan rgya mtsho], A Tibetan English Dictionary with Sanskrit Synonyms, revised and ed. by Graham Sandberg and A. William Heyde, West Bengal Government Press (Alipore 1960), reprint of Calcutta 1902 edition.