- Author: Julius K. Nyerere
- Language: Swahili
- Year: 1980
- Author: Julius K. Nyerere
- Language: English
- Year: 1973
- Author: Julius K. Nyerere
- Language: Swahili, English
- Year: 1969
- Author: Julius K. Nyerere
- Language: Swahili, English
- Year: 1969
- Author: Julius K. Nyerere
- Language: English
- Year: 1982