I.C. ยท Isabel Coimbra & Coimbra, Olga Mata Leite
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Gramatica Ativa (Segundo Acordo Ortografico): Book 2 New Edition | 978-972-757-639-5 (972-757-639-7) | 2012 | |
| Gramatica Ativa - Versao Brasileira: Book 1 (Brazilian Version) + CD | 978-972-757-931-0 (972-757-931-0) | 2012 | Olga Mata Coimbra |