| 978-607-493-018-4 | Teen Topics 1. Secundaria | U.D. Publishing | Gonzalo Celorio Morayta
Ivor Williams
| 2010 |
| 978-607-493-021-4 | Teen Topics 1 | U.D. Publishing | Gonzalo Celorio Morayta
Ivor Williams
| 2010 |
| 978-607-493-024-5 | Teen Topics 1. Guía Didáctica | U.D. Publishing | Gonzalo Celorio Morayta
Ivor Williams
| 2010 |
| 978-607-06-1248-0 | Stopwatch Teacher's Guide 3 | Richmond Publishing | Ivor Williams
| 2015 |
| 978-607-06-1246-6 | Stopwatch Teacher's Guide 6 | Richmond Publishing | Ivor Williams
| 2015 |
| 978-607-06-1358-6 | Stopwatch 3 Digital Book | Richmond Publishing | Alastair Lane
Ivor Williams
| 2016 |
| 978-607-493-773-2 | Tween Topics for Tlalnepantla 4 Student´s Book Second Edition | U.D. Publishing | Frances Mara Bunker Sutlovich
Gonzalo Celorio Morayta
Ivor Williams
| 2016 |
| 978-968-5699-44-0 | Scrap Book 2. | Richmond Publishing | Ivor Williams
| 2003 |
| 978-968-5699-43-3 | Scrap Book 1. | Richmond Publishing | Ivor Williams
| 2003 |
| 978-607-04-0001-8 | Juguemos a aprender inglés 5 | Ediciones Larousse | Ivor Williams
| 2008 |
| 978-607-04-0000-1 | Juguemos a aprender inglés 6 | Ediciones Larousse | Ivor Williams
| 2008 |