Ishaku H. Osman

Other contributions

• Búun Saba
  ISBN 978-3-89645-467-6
  Author: Herrmann Jungraithmayr. In collaboration with: Njeno Andirya Galadima, Stephen Njeno Yoblis. Illustrated by: Ishaku H. Osman. Series edited by: Herrmann Jungraithmayr, Norbert Cyffer, Rainer Voßen.
  Series WeStu Westafrikanische Studien Volume 31