Martina, O. (2011). "The lion and the jewel" and "The swamp dwellers" by Wole Soyinka: A text interpretation and evaluation studies of Nigerian plays in Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Martina, Ononiwu. "The Lion and the Jewel" and "The Swamp Dwellers" by Wole Soyinka: A Text Interpretation and Evaluation Studies of Nigerian Plays in Malaysia. 2011.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Martina, Ononiwu. "The Lion and the Jewel" and "The Swamp Dwellers" by Wole Soyinka: A Text Interpretation and Evaluation Studies of Nigerian Plays in Malaysia. 2011.
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