- Author: Craig Gravina, Alan McLeod
- Language: English
- Year: 2014
- Author: Warner Foster Kilpatrick Gravina
- Language: English
- Year: 2022
- Author: R F. Warner, Stephen Foster, Andrew Kilpatrick, Rebecca Gravina
- Language: English
- Year: 2022
- Author: Maurício Salomoni Gravina
- Language: Portuguese
- Year: 2015
- Author: Gravina R. Nelezek R. Tchalalao R.
- Language: English
- Author: Gravina R.
- Language: French
- Author: Gravina R.
- Language: Afrikaans-English
- Author: Nelezek R. Calalaw R. Gravina R.
- Language: Mbuko