- SAMUEL PROFKIBICHO. "Eighteen (18) chapters in A Comparative Study of Religions, ed, J.N.K. Mugambi (Nairobi: Nairobi University Press) (NB. The 18 chapters include chapters 28 and 29 on Zereastrianism which the editor erroneously credited to Dr. Waruta. The other religions I.". In: Proceedings of 3rd Int. Conf. On bearing capacity of roads and airfields PP 743-756, Trondeihm, Norway. Longhorn; 1990.
Journal of Civil Engineering, Jomo Kenyatta University of Agriculture and Technology Vol.7 PP