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- Nigeria. Federal Ministry of Environment3
- Akinyẹle, Isaac Ọlaoluwa2
- Igun, Sunday Joseph, 1943-2
- Jos Plateau Environmental Resources Development Programme2
- Katsina State History and Culture Bureau2
- Abia State University, sponsoring body1
- Abolagba, Okhumen J.1
- Adedipe, N. O. (Nurudeen Olorun-Nimbe), 1940-1
- Adekoya, John Adeyinka1
- Adeleke-Adedoyin, O.1
- Afigbo, A. E. (Adiele Eberechukwu)1
- Afolabi, O. A.1
- African Network for Environment and Economic Justice1
- Agagu, Olusegun1
- Ahmadu Bello University1
- Ahmadu Bello University. Agricultural Extension and Research Liaison Services1
- Ahmadu Bello University. Centre for Energy Research and Training1
- Aina, E. O. A. (Evans Olufunso Afolabi), 1938-1
- Ajaegbu, Hyacinth I.1
- Ajayi, T. R.1