BIBLIOGRAPHY
- Gujarati , D. N. 1988 . Basic econometrics , 2nd edn. , New York : McGraw-Hill Book Company .
- Jones , E. , Batte , M. T. and Schnitkey , G. D. 1989 . The impact of economic and socio-economic factors on the demand for information: A case study of Ohio commercial farmers . Agribusiness , 5 : 557 – 571 .
- Nell , W. T. , Van Schalkwyk , H. D. , Sanders , J. H. , Schwalbach , L. and Bester , C. J. 1998 . Adoption of veterinary surgeon services by sheep and goat farmers in Qwaqwa A paper presented at the Agricultural Economics Society of South Africa at Swakopmund, Namibia, 30 September–02 October 1998.
- Tambi , N. E. , Mukhebi , W. A. , Maina , W. O. and Solomon , H. M. 1999 . Probit analysis of livestock producers' demand for private veterinary services in the high potential agricultural areas of Kenya . Agricultural System , 59 : 163 – 176 .
- Umali , D. L. , Feder , G. and De Haan , C. 1994 . Animal health services: Finding the balance between public and private delivery . The World Bank Research Observer , 9 ( 1 ) : 71 – 96 .