| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2017 | 978-1-945755-01-9 | Cleo Borac · Silviu Borac | Practice Tests in Math Kangaroo Style for Students in Grades 5-6 (Math Challenges for Gifted Students) (Volume 3) |
| '' | 978-1-945755-02-6 | Cleo Borac | Weekly Math Club Materials for Grades 1-2 (Volume 1) |