Hill 2011. —— (2011), "The allative, locative, and terminative cases (la-don) in the Old Tibetan Annals", New Studies in the Old Tibetan Documents: Philology, History and Religion(PDF), Old Tibetan Documents Online Monograph Series, vol. 3, Tokyo: Research Institute for Languages and Cultures of Asia and Africa, Tokyo University of Foreign Studies, pp. 3–38.