1. ANDERSON, D R, SWEENEY, D J and WILLIAMS, T A. 1976. Linear programming for decision-making. West Publishing Company, St. Paul, U.S.A.:219-283
2. BARNARD, C S and NIX, JS. 1981. Farm Planning and Control. 2nd ed. London: Cambridge University Press
3. BOEHLJE, M D and EIDMAN, VR. 1984. Farm Management. New York, U.S.A., John Wiley & Sons
4. DEVOSKIN, D. 1979. Applications of Linear Programming in the Kibbutz to Economic Assessment of a Complex Enterprise. Pamphlet No. 27, Division of Scientific Publications. Agricultural Research Organization, Bet-Dagan, Israel:1-26
5. HUGO, H F. 1985. 'n Opbrengs-koste-vergelyking van die lineêre programmeringstegniek vir beplannings op plaasvlak in die Kroonstad-omgewing. Unpublished M.Sc.Agric, dissertation, University of the Orange Free State, Bloemfontein