Academic Therapy Pubns · Pro Ed
| title | ISBN-13 | year of publication |
|---|---|---|
| Letter Tracking: Book Two | 978-0-87879-868-1 | 1989 |
| Listen, My Children, and You Shall Hear: Book One | 978-0-89079-259-9 | 1991 |
| Listen My Children and You Shall Hear: Book Three | 978-0-89079-232-2 | 1990 |
| Listen, My Children, and You Shall Hear: Book Two | 978-0-89079-257-5 | 1987 |