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Place, F and Barrett, C B and Freeman, H A and Ramisch, J J and Vanlauwe, B (2003) Prospects for integrated soil fertility management using organic and inorganic inputs: evidence from smallholder African agricultural systems. Food Policy, 28 (4). pp. 365-378. ISSN 0306-9192
Bationo, A and Kihara, J and Vanlauwe, B and Kimetu, J and Waswa, B S and Sahrawat, K L (2008) Integrated Nutrient Management: Concepts and Experience from Sub-Saharan Africa. In: Integrated Nutrient Management for Sustainable Crop Production. The Haworth Press, Taylor & Francis Group, New York, USA, pp. 467-521. ISBN 9781560223047