Rujukan Durmstrang

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↑ Knapp, Robbin D. (2005). German English Words: A Popular Dictionary of German Words Used in English. Lulu.com. m/s. 105. ISBN 1411658957.
↑ Colbert, David (2005). The Hidden Myths in Harry Potter: Spellbinding Map and Book of Secrets. St. Martin's Griffin. m/s. 19. ISBN 0312340508.
↑ Whited, Lana A. (2002). The Ivory Tower and Harry Potter: Perspectives on a Literary Phenomenon. University of Missouri Press. m/s. 23. ISBN 0826215491.