Sumatra Septentrional: diferència entre les revisions

| grups_etnics= [[Batak]] (42%)<br />[[Javanesos]] (33%)<br />[[Nias]] (6%)<br />[[Malais]] (5%)<br />[[minangkabau (poble)|minangkabau]] (3%)<ref>{{ref-llibre | cognom = | nom = | editorial=Institute of Southeast Asian Studies | títol =Indonesia's Population: Ethnicity and Religion in a Changing Political Landscape | data = | any =2003 }}</ref>