//-->
A farming system approach for growth with equity of small farmers
Singh, Ajit Kumar, (1987)
Efficiency of organic input units under NPOF scheme in India
Charyulu, D. Kumara, (2010)
Land systems of hill and highland tropical America
Posner, Joshua L., (1983)
Caste and primary occupations : a geographical analysis
Mohammad, Noor, (1988)
New dimensions in agricultural geography
Mohammad, Noor, (1992)
Historical dimensions of agriculture