Al-Suhaibani, S.A.(1989). Costs of using farm machinery for wheat production in Saudi Arabia. Bull. Fac. of Agric., Univ. of Cairo, 40(1): 61-77.
ASAE (1998). Agricultural machinery management data. Agricultural Engineers Year-book. ASAE, st. Joseph, MI 49085.
Butter and Johnnix (1983). Farm mechanization on profit. 1070.
Edward, W. and M. Boehije (1980). Machinery selection considering timeliness losses. Trans. Of the ASAE 23: 810-815.
Gee-Clough, D.; M. McAllister; G. Pearson and D. W. Everndern (1978). The empirical prediction of tractor-implement field performance. Journal of Terramechanics 15(2): 81-94
Glancey, J.L.; S.K. Upadhyaya; W.J. Chancellor and J.W. Rumsey (1996). Prediction of agricultural implement draft using an instrumented analog tillage tool. Soil &Tillage Research 37: 47-65.
Harrigan, T.M. and C.A. Rotz (1994). Draft of major tillage seeding equipment. ASAE, Paper No. 94-1533, Michigan, U.S.A.
Hunt, O. (1983). Farm power and machinery management 8th ed. Iowa State Univ. Press, Ames.
Kepner, R.A.; R. Baniner and E.L. Barger (1982). Principles of farm machinery. 2nd. Edition. The AVI publishing company inc., Westport, Connecticut.
Srivastava, A.C. (1995). Engineering Principals of Agric. Machines ASAE Textbook No. 6 Published the ASAE.
Willimam, L. (2005). Farm machinery economic cost estimates for late. Extension farm management specialist. Nebraska Univ. Co. of Ag. and Env. sci.
)
View on SCiNiTO