Beck, F. (1999). Simulation of separation processes in combine harvesters. Ph.D. dissertation, Hohenheim University, Forschritt-Berichte VDI, Reihe, 14(92).
El-Fawal, Y.A., M.A. Tawfik and A.M. El-Shal. (2009). Study on physical and engineering properties for grains of some field crops. Misr J. Ag. Eng., 26(4), pp: 1933-1951.
El-Sheikha, M.A., H. E. El-Morsy and M. A. I. Al-Rajhi. (2010). Some physical and mechanical properties of Wheat grain. J. of Soil Sciences and Agricultural Engineering. Vol.1 (3), pp: 299 - 309.
Hanna, S., S.M. Ahmed, N.M. El-Ashmawy. (2010). Selection of the main factors affecting cleaning and grading fennel seeds at inclined sieve oscillation. misr j. ag. Eng. 27 (2), pp: 628 – 643.
Khoshtaghaza, M. H. and Mehdizadeh, R. (2006). Aerodynamic property of wheat kernel and straw materials. The CIGR E-journal. Vol. (8), Manuscript FP 05 007.
Kurt, G. (1979). Engineering formulas. MacGraw hill book company. 3rd ed. New York. St. Louis San Francisco Montreal-Toronto.
Mohsenin, N.N. (1980). Physical properties of plant and animal materials, 2nd ed. Gordon and Breach Science Publishers, New York.
Muhammad, U.S., L.G. Abubakar, M. Isiaka and R.M. Davies. (2013). Design and evaluation of a cleaning machine. App. Sci. Rep. PSCI Publications. Vol. 1 (3), pp: 62-66.
Simonyan, K.J. and Y.D. Yiljep. (2008). Investigating grain separation and cleanliness distribution of a conventional stationary rasp-bar sorghum thresher. Agricultural Engineering International: the CIGR E Journal Manuscript PM. 7 (28). Vol. 10. August.
Tabatabaeefar, A., H. Aghagoolzadeh and H. Mobli. (2003). Design and development of an auxiliary chickpea second sieving and grading machine. Agricultural Engineering International: the CIGR Journal of Scientific Research and Development. Manuscript FP. 3 (5). Vol. V. December.
Unal, H. (2009). Some Physical and Nutritional Properties of Hulled Wheat. Tarim Bilimleri Dergisi. Vol. 15 (1), pp: 58-64.
Unal, H., G. Izli, N. Izli and B. Asik. (2017). Comparison of some physical and chemical characteristics of buckwheat (Fagopyrum esculentum Moench) grains. CYTA Journal of Food. Vol. 15(2), pp: 257–265.