REFERENCES
- Anderson , J. R. , Dillon , J. L. and Hardaker , B. 1977 . Agricultural decision analysis Iowa : The Iowa State University Press .
- Binding , H. R. , Van Schalkwyk , H. D. , Van Zyl , J. and Sartorius Von Bach , H. J. 1993 . Diversification as a risk strategy in times of change: a study in the Eastern Orange Free State . Agrekon , 32 ( 4 ) : 182 – 186 .
- Boehlje , M. D. and Eidman , V. R. 1984 . Farm management New York : John Wiley & Sons .
- Buckler , C. 1998 . Personal communication Petrus Steyn : Herbicide selling agent .
- Crause , K. 1998 . Personal communication Bethlehem : Public relations officer, Sentraal-Oos Koöperasie Beperk .
- Cronje , J. 1998 . Personal communication Petrus Steyn : Grain grader, Vrystaat Koöperasie Beperk .
- Doll , J. P. and Orazem , F. 1984 . Production economics: theory with applications, , 2nd ed. New York: John Wiley and Sons
- Makeham , J. P. and Malcolm , L. R. 1993 . The farming game now New York : Cambridge University Press .
- Meiring , J. A. 1994 . Die ontwikkeling en toepassing van 'n besluitnemingsondersteuningstelsel vir die ekonomiese evaluering van risikobestuur op plaasvlak Ph.D. Thesis. University of the Orange Free State
- Meiring , P. W. 1998 . Personal communication Petrus Steyn : Farmer .
- Nel , A. A. and Purchase , J. L. 1998 . Opbrengsresultate van vier jaar van wisselbou in die Oostelike Vrystaat . Toegepaste Plantwetenskap , 12 ( 1 ) : 15 – 19 .
- Perry , G. M. , Rister , M. E. and Richardson , J. W. 1985 . Landowner vs. farm operator perspective on crop rotations and land rental arrangements . Journal of the American Society of Farm Managers and Rural Appraisers , 49 ( 2 ) 48–53
- Van Der Watt , D. J. 1998 . Personal communication Bloemfontein : Research assistant. University of the Orange Free State .