Official methods of analysis of the Association of Official Agricultural Chemists
Horwitz, William, editor
Association of Official Agricultural Chemists, 1955
 Buku Referensi
System analysis in agricultural management
edited by J.B. Dent and J.R. Anderson
John Wiley & Sons, 1971
 Buku Teks
Shepherd, Geoffrey S.
Agricultural price analysis
Iowa State University Press, 1968
 Buku Teks
Agricultural decision making : anthropological contributions to rural development
edited by Peggy F. Barlett
Academic Press, 1980
 Buku Teks SO
Paik, C.M., 1931-
Quantitative methods for managerial decision
McGraw-Hill, 1973
 Buku Teks