Allen, R.G.; L.S. Pereira; D. Raes and M. Smith, 1998. Crop evapotranspiration. Guidelines for computing crop water requirements. FAO I. and Drain. Paper No. 56, FAO, Rome, Italy, 300.
Allende, A.; M. Desmet and E. Vanstreels. 2004. Micromechanical and geometrical properties of tomato skin related to differences in puncture injury susceptibility. Postharvest Biol. Technol. 34: 131-141.
Altisent, M. R. 1991. Damage mechanisms in the handling of fruits: Progress in agricultural physics and engineering. John Matthew (Ed.), Commonwealth Ag. Bur. (CAB) I. Willingford, UK: 231-255.
Bahnasawy, A. H. 2007. Some physical and mechanical properties of garlic. Int. J. Food Eng. 3: 1–18.
Bajema, R. H. and G. M. Hyde. 1998. Instrumented pendulum for impact characterization of whole fruit and vegetable specimen. Transactions of the ASAE 41: 1399-405.
Batu, A. 1998. Some factors affecting on determination and measurement of tomato firmness. Tropical J. of Ag. and Forestry, 22: 411-418.
Costa, J. M.; M.F. Ortuno and M. M. Chaves. 2007. Deficit irrigation as a strategy to save water: physiology and potential application to horticulture. Journal of Integrative Plant Biology 49: 1421–1434.
Dewulf, W.; P. Jancsok; B. Nicolai; D. D. Roeck and D. Briassoulis. 1999. Determining the firmness of a pear using finite element modal analysis. J. of Ag. Eng. Res., 74 (3): 217-224.
Ghonimy, M. I. 2003. Analytical approach to energy balance in seed-bed preparation for corn crop. Misr J. Ag. Eng., 20 (1): 1-17.
Gonzalez J.J.; K.L. Mccarthy and M. J. Mccarthy. 1998. MRI method to evaluate internal structural changes of tomato during compression. J. Texture Stud. 29: 537-551.
Ibrahim, M. M. 2008. Determination of dynamic coefficient of friction for some materials for feed pellet under different values of pressure and temperature. Misr J. Ag. Eng., 25(4):1389-1409.
Joshi, D.C.; S.K. Das and R.K. Mukherjee. 1993. Physical properties of pumpkin seeds. Agric. Eng. 54: 219–229.
Lien, C. C.; C.Y. Ay and C. H. Ting. 2009. Non-destructive impact test for assessment of tomato maturity. J. Food Eng. 91(3): 402-407.
Linden, V. V.; N. Scheerlinck and M. Desmet. 2006. Factors that affect tomato bruise development as a result of mechanical impact. Postharvest Biol. Technol. 42: 260-270.
Lovelli, S.; M. Perniola; A. Ferrara and T. Di Tommaso. 2007. Yield response factor to water (Ky) and water use efficiency of Carthamus tinctorius L. and Solanum melongena L. Agric. Water Manage. 92, 73–80.
Mohsenin, N. N. 1986. Physical properties of plant and animal materials. Structure, physical characteristics and mechanical properties. 2nd updated and revised ed. Gordon and Breach Sc. Pub. Inc. N. Y.
Topcu, S.; C. Kirda; Y. Dasgan; H. Kaman; M. Cetin; A. Yazici and M.A. Bacon, 2007. Yield response and N-fertilizer recovery of tomato grown under deficit irrigation. Europ. J. of Agron. 26: 64 –70.
Zhiguo L.; L. Pingping and L. Jizhan. 2010. Effect of tomato internal structure on its mechanical properties and degree of mechanical damage. African J. of Biotec. Vol. 9(12): 1816-1826.