for the socio-economic development in the rural areas of Rwanda

- ISBN: 978-613-8-44431-2

- ISBN: 978-613-8-48609-1

Understanding the evolution of major earthquake sequences

- ISBN: 978-613-1-51014-4

- ISBN: 978-613-8-48811-8

- ISBN: 978-613-8-49465-2

- ISBN: 978-613-8-42808-4

- ISBN: 978-613-8-45658-2

- ISBN: 978-613-8-40539-9

Treatments of pictures & cards,decision and optimization

- ISBN: 978-620-2-28253-6

A Tool for Visionary Leaders to Achieve Successful Transformation and Sustainable Development

- ISBN: 978-3-8416-1518-3