Agriculture and environment: the physical geography of temperature agriculture systems

Serving agriculture as an administrator

Transforming traditional agriculture / Theodore W. Schultz

Cellular diferentiation in plants and other essays / C W Wardlaw

Pemapanan pertanian lahan kering menurut konsep keterlanjutan fungsi lingkungan : kasus daerah Tapak Waduk Kedung Ombo = the Establishment of upland agriculture based on the concept of the sustainability of its environmental function : case of Kedung Ombo Dam Site area