| 978-958-97057-4-2 | Privateacher Advanced Conversarion English Program | OBM CORPORATION | Óscar Montañes Lacava
Joselín Camelo Vaca
| 2001 |
| 978-958-96758-3-0 | Privateacher English Program Book - 2 | OBM CORPORATION | Óscar Montañes Lacava
Martín Andres Ayala Plazas
| 1999 |
| 978-958-96758-4-7 | Privateacher English Program Book - 3 | OBM CORPORATION | Óscar Montañes Lacava
Martín Andres Ayala Plazas
| 1999 |
| 978-958-96758-1-6 | Privateacher English Program Instructions | OBM CORPORATION | Óscar Montañes Lacava
Martín Andres Ayala Plazas
| 1999 |
| 978-958-96758-2-3 | Privateacher English Program Instructions | OBM CORPORATION | Óscar Montañes Lacava
Martín Andres Ayala Plazas
| 1999 |
| 978-958-96758-0-9 | Privateacher English Program Test | OBM CORPORATION | Óscar Montañes Lacava
Martín Andres Ayala Plazas
| 1999 |
| 978-958-97057-2-8 | Privateacher for Kids English Program | OBM CORPORATION | Óscar Montañes Lacava
Joselín Camelo Vaca
| 2001 |
| 978-958-97057-1-1 | Privateacher For Busines English Program | OBM CORPORATION | Óscar Montañes Lacava
Joselín Camelo Vaca
| 2001 |
| 978-958-97057-0-4 | Privateacher for Everybody one English Program | OBM CORPORATION | Óscar Montañes Lacava
Joselín Camelo Vaca
| 2001 |
| 978-958-97057-3-5 | Privateacher for Everybody Two English Program | OBM CORPORATION | Óscar Montañes Lacava
Joselín Camelo Vaca
| 2001 |
| 978-958-99961-0-2 | Privateacher | OBM CORPORATION | Oscar Adolfo Baracaldo
Óscar Montañes Lacava
| 2011 |
| 978-958-99961-1-9 | Privateacher - Basic | OBM CORPORATION | Oscar Adolfo Baracaldo
Óscar Montañes Lacava
| 2011 |
| 978-958-99961-2-6 | Privateacher - Intermediate | OBM CORPORATION | Oscar Adolfo Baracaldo
Óscar Montañes Lacava
| 2011 |
| 978-958-99961-3-3 | Privateacher - Advanced | OBM CORPORATION | Oscar Adolfo Baracaldo
Óscar Montañes Lacava
| 2011 |
| 978-958-99961-4-0 | Privateacher - Office Talk | OBM CORPORATION | Oscar Adolfo Baracaldo
Óscar Montañes Lacava
| 2011 |
| 978-958-56832-1-1 | Privateacher Basic conversation | SPU Company | Óscar Montañes Lacava
| 2018 |