Perception of students at the Ethiopian Civil Service University

- ISBN: 978-3-8473-1566-7

Modelling and Simulating Software Process Qualitatively

- ISBN: 978-3-8454-1728-8

Socio-Religious Investigation into the African Traditional Concept of Dignity for Women (Igbo Society as a case study)

- ISBN: 978-613-9-45606-2

A Humanistic Perspective of Innovation, Entrepreneurship and Sustainability

- ISBN: 978-613-9-88866-5

Toolkit for measuring the immeasurable

- ISBN: 978-3-659-70712-4

- ISBN: 978-620-2-09314-9

The History and Evolution of Money and Banking

- ISBN: 978-3-8383-7870-1

Translation by: Maria Stoicanescu

- ISBN: 978-620-2-09538-9

Seven Athol Fugard Plays

- ISBN: 978-3-8383-3402-8

- ISBN: 978-620-2-07624-1