South African Journal of Agricultural Extension On-line version ISSN 2413-3221 Print version ISSN 0301-603X
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VORSTER, H.J.; STEVENS, J.B. and STEYN, G.J..Production systems of traditional leafy vegetables: Challenges for research and extension. S Afr. Jnl. Agric. Ext. [online]. 2008, vol.37, n.1, pp.85-96.
South African Society of Agricultural Extension (SASAE) Department of Agricultural Economic, Extension and Rural Development, University of Pretoria, Pretoria, Gauteng, ZA, 0002, Tel: +27 12 420 4623