Wahab, A. H., and M. A. Lugo-López. 1980. “Yield Response of Cassava (Manihot Esculenta Crantz) to One and Two Banded Fertilizer Applications on a Limed Guyana Peaty Clay Soil”. The Journal of Agriculture of the University of Puerto Rico 64 (2):190-93. https://doi.org/10.46429/jaupr.v64i2.10232.