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Ndjeunga, J and Ntare, B R and Waliyar, F and Echekwu, C A and Kodio, O and Kapran, I and Diallo, A T and Amadou, A and Bissala, H Y and Da Sylva, A (2008) Early adoption of modern groundnut varieties in West Africa Working Paper Series No. 24 Socio Economic and Policy. Working Paper. International Crops Research Institute for the Semi-Arid Tropics , Patancheru, Andhra Pradesh, India.
Ntare, B R and Ndjeunga, J and Waliyar, F and Kodio, O and Echekwu, C A and Kapran, I and Da Sylva, A and Diallo, A T and Amadou, A and Bissal, H Y and Sako, K (2008) Farmer Participatory Evaluation and Dissemination of Improved Groundnut Varieties in West Africa. Manual. International Crops Research Institute for the Semi-Arid Tropics.