| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Number Phonics: A Complete Learn-By-Numbers Reading Program for Easy One-On-One Tutoring of Children | 978-1-223-01056-4 (1-223-01056-2) | 2003 |
| Number Phonics: Basic Reading Instruction Made Easy for Children in Homeschooling, Private Tutoring Title I, Lap, Special Education, ESL, And Elementary School | 978-1-885942-23-4 (1-885942-23-0) | 2005 |
K. D. · K. Davidson · K L · K. L. Davidson · Karen Davidson · Karen L. · L.D. · L. Davidson · Louise Davidson