| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| ICO Islamic Studies Textbook: Grade 1, Part 1 | 978-9960-9681-3-1 | 2007 | Ashraf Ajam · Abdel-Salam Al-Drouby |
| ICO Islamic Studies Textbook: Grade 3, Part 1 | 978-9960-9681-5-5 | 2016 | Ashraf Ajam · Abdel-Salam Al-Drouby |
| ICO Islamic Studies Textbook: Grade 6, Part 2 | 978-603-8059-26-5 | 2009 | Ashraf Ajam · Abdel-Salam Al-Drouby |
| ICO Islamic Studies Workbook: Grade 1, Part 1 | 978-9960-9681-6-2 | 2007 | |