1. Technomorphology, innovation and energy analysis: I. concepts and perspective
2. Twiss, B. 1980. “‘Managing Technological Innovation’”. London: Longman.
3. Mensch, G. 1979. “‘Stalemate in Technology: Innovations Overcome the Depression’”. Cambridge, USA: Ballinger Publishing Co.
4. Marwick, A. 1976, 1970. “‘The Nature of History’”. London: Macmillan.
5. “‘Christian Reflections’”. Glasgow: Collins.