1. Mechanical expression of oil from melon seeds;Ajibola;Journal of Agricultural Engineering Research,1990
2. Physical property of peanut in turkey;Alcali;Agricultural Mechanization in Asia, Africa and Latin America,1990
3. ASAE, 1993, Standard EPP - 03 and FE-03
4. Sphericity and roundness of quartz grains;Curray,1951
5. Physical properties of gram;Dutta;Journal of Agricultural Engineering Research,1988