Stokhof W.A.L. (Ed.). Holle lists: vocabularies in languages of Indonesia: Vol. 9: Northern Sumatra

The Australian National University, Research School of Pacific Studies, 1986. — 320 p. — (Pacific Linguistics: Series D 71/Materials in languages of Indonesia 33).The Holle lists are a comprehensive collection of vocabulary lists for various languages spoken in Indonesia. Compiled by Karel Frederik Holle and later expanded by other linguists, these lists cover a wide range of languages and dialects across the Indonesian archipelago.