Wahab, A.H., Aitken-Soux, P., Johnson, I., Paniagua, C., Woo, B.-M., Murray, H., Dehaney, J. and Lugo-López, M.A. 1985. Multiple Cropping in the Hillsides of Jamaica. The Journal of Agriculture of the University of Puerto Rico. 69, 3 (Jul. 1985), 273–282. DOI:https://doi.org/10.46429/jaupr.v69i3.7355.