| Titel | ISBN-13 (ISBN-10) | Erscheinungsjahr |
|---|---|---|
| Solidarity: A Principle of Sociality: Phenomenological-Hermeneutical Approach in the Context of the Philosophy of Alfred Schutz and an African Culture | 978-3-88939-863-5 (3-88939-863-4) | 2007 |
| Thy Kingdom Come: The Advent, Growth and Role of the Catholic Church in Umudioka - Dunukofia 1913-2007 | 978-3-88939-895-6 (3-88939-895-2) | 2007 |