Sagoe, R., Haleegoah, J., & Marfo, K. A. (2007). Economic evaluation of cocoyam (<i>Xanthosoma</i> sp.) and maize (<i>Zea mays</i>) in a mixed cropping system. Ghana Journal of Agricultural Science, 39(2), 171–180. https://doi.org/10.4314/gjas.v39i2.2140