Rujukan Sumatera

↑ Drakard, Jane (1999). A Kingdom of Words: Language and Power in Sumatra. Oxford University Press. ISBN 983560035X.
↑ Munoz. Early Kingdoms. m/s. 175.
↑ Sneddon, James N. (2003). The Indonesian language: its history and role in modern society. UNSW Press. m/s. 65. ISBN 0868405981, 9780868405988 Check |isbn= value: invalid character (bantuan).
↑ Macdonell, Arthur Anthony (1924). A practical Sanskrit dictionary with transliteration, accentuation, and etymological analysis. Motilal Banarsidass Publ. m/s. 347. ISBN 8120820002, 9788120820005 Check |isbn= value: invalid character (bantuan).
↑ Nicholaas Johannes Krom, De Naam Sumatra, BKI, 100, 1941.
↑ G.R. Tibbets,Pre-Islamic Arabia and South East Asia, in D.S. Richards (ed.),1970, Islam and The Trade of Asia, Oxford: Bruno Cassirer Pub. Ltd, p. 127 nt. 21; S.Q.Fatimi, In Quest of Kalah, in D.S. Richards (ed.),1970, p.132 n.124; W.P. Groeneveldt, Notes in The Malay Archipelago, in D.S. Richards (ed.),1970, p.129 n.42
↑ Tidak terletak di pulau Sumatera dari mata kasar.
↑ Tidak terletak di pulau Sumatera dari mata kasar.
↑ Helders, Stefan. "Indonesia: largest cities and towns and statistics of their population". World Gazetteer. Dicapai 2009-04-21.
1 2 Whitten, Tony (1999). The Ecology of Sumatra. Tuttle Publishing. ISBN 9625930744.
↑ Forest, Wildlife Protection Pledged at World Conservation Congress
↑ "The Republic of Indonesia Administrative units".
↑ "Number of Population by Religion Year 2005".

Rujukan