Lua APA (7ú heag.)
Ikoko-Okparan, T. D. D., Dede, S. C. A., & Mangi-Pegi, S. (2007). Nembe numerals: Nembe Bibi A Kien Yai Ma. Onyoma Research Publications.
Lua i Stíl Chicago (17ú heag.)
Ikoko-Okparan, Timotheus D. D., S. C. Awaki-Gam Dede, agus Sylvester Mangi-Pegi. Nembe Numerals: Nembe Bibi A Kien Yai Ma. Rivers State, Nigeria: Onyoma Research Publications, 2007.
Lua MLA (9ú heag.)
Ikoko-Okparan, Timotheus D. D., et al. Nembe Numerals: Nembe Bibi A Kien Yai Ma. Onyoma Research Publications, 2007.
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