Betts, P.W., Supervisory studies. London: Macdonald and Evans, 1968, pp. 6 ff.
2.
Broadbent, M., An analysis of induction training for supervisors in the cooperative extension service of the Southern and Western regions of the United States (Ph.D. thesis) . University of Wisconsin, Madison , 1960, pp. 155 ff.
3.
Das, Prasantak, Importance of front line supervisors in promoting productivity and work relation . Calcutta: Industrial Relations , 1966, pp. 60-64.
4.
Davis, David W., " Development of supervisory performance evaluation ". Personnel Journal, 50: 4, 1971, pp. 306 ff.
5.
Feroutky, Vernon, W., The agricultural agent as administrator of the county extension programme as perceived by agricultural agents in Wisconsin (M.S. thesis). Department of Agriculture and Extension Education, University of Wisconsin, 1960, pp. 118 ff.
6.
Lippert, Fred G., " Responsibilities of a supervisor ". Supervision, XXXII: 8, 1970, pp. 17 ff.
7.
Meyer, Paul J., " President, success motivation institute, inc., Waco, Texas: which motivate best — Fear ... money ... inspiration ". Supervision , XXX ; I, 1968, pp. 3 ff.
8.
Reddy, A.A., "Human relations in extension supervision ". Andhra Agricultural Journal, 1964, Bapatla 11(3), p. 73 ff.
9.
Rogers, F.E. and Olmsted, Ann G., Supervision in the cooperative extension service. Wisconsin : National Agricultural Extension Centre for Advanced Study, University of Wisconsin, 1957.
10.
Singh, K.N., Rao, C.S.S. and Sahay, B.N., Research in extension education for accelerating development process . New Delhi: Indian Soc. of Exten. Education. Division of Agricultural Extension, IARI, 1970, pp. 201 ff.
11.
Van Dersal, William R., The successful supervisor in Government and business. New York: Harper and Row, 1968, pp. 25 ff.