F. Y. Tibamanya, J. A. Kuzilwa, and D. F. Mpeta, “OPPORTUNITIES FOR SELF-FINANCING THE USE OF HIGH-YIELDING SUNFLOWER SEEDS AMONGST SMALLHOLDER FARMERS IN TANZANIA: PERCEPTIONS VS. REALITY OF LIQUIDITY LIMITATIONS”, aspe, vol. 20, no. 1, pp. 93–104, Jun. 2021.