The Pen and the Plough: Balanta Young Men in Guinea-Bissau
Marina Temudo , Manuel Abrantes
Development And Change, vol. 46, 2015, p. 464-485.

Markets for marama beans in southern Africa: Linking sustainable products with sustainable livelihoods
Margarida Faria, Edward Mabaya, Danie Jordaan
Development Southern Africa, vol. 28, 2011, p. 477-492.