BAN, A. W. , VAN DEN (1963). Boer en Landbouwvoorlichting: de communicatie van nieuwe Landbouwmethoden. Assen, Netherlands: Van Gorcum .
2.
BATTEN, T. R. (1957). Communities and their development. London: Oxford University Press .
3.
BEAL, G. M. & BOHLEN, J. M. (1957). The diffusion process. Special report. Agricultural Extension Service, Iowa State College, Ames, Iowa .
4.
BELL, C. E. (1965). Extension's future with agriculture. Extension Review USDA.
5.
BENVENUTI, B. (1962). Farming in cultural change. Assen: Van Gorcum .
6.
BURGER, P. J. (1964). Effect of agricultural training at Grootfontein College of Agriculture on the behaviour of farmers in the Eastern Karoo. (Unpublished thesis.)
7.
EMERY, F. E. & OESER, O. A. (1957). Information, decision and action. Melbourne: Melbourne University Press .
8.
LIONBERGER, H. F. (1954). The relation of informal social groups to the diffusion of farm information in a Northeastern Missouri farm community . Rural Sociol.19, 235-235 .
9.
MARSH, C. P. & COLEMAN, A. L. (1954). The relation of neighbourhood of residence to adoption of recommended farm practices . Rural Sociol.19, 385-389 .
10.
MERTON, R. K. (1957). Social theory and social structure. (2nd rev. edn.) Glencoe, Ill.: The Free Press .
11.
PARSONS, T. & BALES, R. F. (1955). Family, socialization and interaction process. Glencoe, Ill.: The Free Press; London: Routledge & Kegan Paul , 1956.
12.
ROGERS, E. (1962). The dffusion of innovations. New York: Free Press of Glencoe .
13.
RYAN, B. & GROSS, N. (1943). Acceptance and diffusion of hybrid seed corn in two Iowa communities . Rural Sociol.8, 15-24 .
14.
TULLY, J. (1964). Operational research in agricultural extension in Queensland. Agricultural Progress, Vol. 39.
15.
TULLY, J. , WILKENING, E. A. & PRESSER, H. A. (1964). Factors in decision-making in farming problems . Hum. Relat.17, 295-320 .
16.
WILKENING, E. A. (1952). Acceptance of improved farm practices in three coastal plain counties . North Carolina Agr. Exp. Sta. Tech. Bull.98.
17.
WILKENING, E. A. , TULLY, J. & PRESSER, H. A. (1962). Practice, communication and acceptance . Rural Sociol.27, No. 2.
