Avila, MarcelinoNdimande, B.N.2007-11-122007-11-121985http://hdl.handle.net/10625/8004Meeting: Progress and Needs in On-Farm Research with a Systems Perspective, Nov. 1985, Maseru, LSapplication/pdfenON-FARM RESEARCHFARMING SYSTEMSZIMBABWECOMMUNAL LANDCROPSLIVESTOCKMODELSConference Paper