| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Ethiopian Church History: The Ethiopian Orthodox Tewahido Church Vs the Roman Catholic Church | 978-1-4774-7475-4 (1-4774-7475-7) | 2012 |
| The Holy Trinity Theological College: A Comparative Analysis of the Holy Trinity Theological College Academic and Extra/Co-Curricular Activities in the Pre 1977 and Post 1994 | 978-1-4774-8943-7 (1-4774-8943-6) | 2012 |