Folklore: An Encyclopedia of Beliefs, Customs, Tales, Music, and Art, Volume 1, edited by Thomas A. Green, p. 588نسخة محفوظة 22 يونيو 2016 على موقع واي باك مشين.
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Aina OF، Famuyiwa OO (2007). "Ogun Oru: a traditional explanation for nocturnal neuropsychiatric disturbances among the Yoruba of Southwest Nigeria". Transcultural Psychiatry. ج. 44 ع. 1: 44–54. DOI:10.1177/1363461507074968. PMID:17379609.
Folklore: An Encyclopedia of Beliefs, Customs, Tales, Music, and Art, Volume 1, edited by Thomas A. Green, p. 588نسخة محفوظة 22 يونيو 2016 على موقع واي باك مشين.