1. Arnon, I., 1989. Agricultural Research and Technology Transfer, Elsevier Applied Science, London, and New York, 684 pp.
2. Axinn, G., 1988. Guide on Alternative Extension Approaches, FAO, Rome, Italy, 148 pp.
3. Balit, S., 1993. Development support communication and agriculture, the road ahead. Development Communication Report, 80 (1): 1-4.
4. Boyaci, M., 1996. Agricultural Extension in European Union Countries and Turkey, Ege University Agricultural Research and Extension Centre, Extension Series (3), Bornova, Izmir, Turkey, 21s.
5. Boyaci, M., 2016. A Research on Improving of Agricultural Innovation System: case of Aegean Region” TUBITAK Program 1001, Project No: 112O208, 148 pp.