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- [31] Distribution profiles of selected organic pollutants in soils and sediments of industrial, residential and agricultural areas of South Africa JOURNAL OF ENVIRONMENTAL MONITORING, 2009, 11 (09): : 1647 - 1657
- [33] Agriflection: A Learning Model for Agricultural Extension in South Africa JOURNAL OF AGRICULTURAL EDUCATION & EXTENSION, 2006, 12 (03): : 179 - 193
- [34] THE STATE AND PROSPECTS FOR AGRICULTURAL PRODUCTION IN SOUTH-AFRICA SOUTH AFRICAN JOURNAL OF ANIMAL SCIENCE-SUID-AFRIKAANSE TYDSKRIF VIR VEEKUNDE, 1982, 12 (02): : 151 - 154