Tohutoro APA (7th ed.)
Wafula, R. M., & Njogu, K. (2007). Nadharia za uhakiki wa fasihi. Jomo Kenyatta Foundation.
Tohutoru Kātū Chicago (17th ed.)
Wafula, Richard M., me Kimani Njogu. Nadharia Za Uhakiki Wa Fasihi. Nairobi: Jomo Kenyatta Foundation, 2007.
Tohutoro MLA (9th ed.)
Wafula, Richard M., me Kimani Njogu. Nadharia Za Uhakiki Wa Fasihi. Jomo Kenyatta Foundation, 2007.
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