- Author: Ladislau Dowbor
- Language: Portuguese
- Year: 2018
- Author: Ladislau Dowbor
- Language: Portuguese
- Author: Ladislau Dowbor
- Language: Portuguese
- Author: Ladislau Dowbor
- Language: English
- Year: 2021
- Author: Ladislau Dowbor
- Language: English
- Year: 2019
- Author: Ladislau Dowbor
- Language: Portuguese
- Year: 1985
- Author: Ladislau Dowbor
- Language: Portuguese
- Year: 2019
- Author: Ladislau Dowbor
- Language: Portuguese
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guine-bissau
pdf
- Author: Ladislau Dowbor
- Language: Portuguese