1994
Development Of Agriculture In The Sudan: An Annotated Bibliography With An Introductory Essay. Sudan Library Series No. 19. Khartoum, Sudan: University of Khartoum, Institute of African and Asian Studies, Khartoum University Press. http://www.worldcat.org/oclc/32608519.
. 1994. Indigenous Farming Systems, Knowledge And Practices In The Sudan. Sudan Library Series No. 21. Khartoum, Sudan: Khartoum University Press. http://www.worldcat.org/oclc/32817483.
. 1994. Indigenous Knowledge For Sustainable Development In The Sudan. Sudanese Library Series No. 20. Khartoum, Sudan: Khartoum University Press, Institute of African and Asian Studies. http://www.worldcat.org/oclc/32817483.
. 1994.