Soyinka, W. The Fourth Stage: Through the Mysteries of Ogun to the Origin of Yoruba Tragedy / Wole Soyinka. African philosophy : an anthology.(1998).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSoyinka, Wole. "The Fourth Stage: Through the Mysteries of Ogun to the Origin of Yoruba Tragedy / Wole Soyinka." African Philosophy : An Anthology.(1998) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रSoyinka, Wole. "The Fourth Stage: Through the Mysteries of Ogun to the Origin of Yoruba Tragedy / Wole Soyinka." African Philosophy : An Anthology.(1998), .
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