Puentes-Páramo, Y.J., Menjivar-Flores, J.C. and Aranzazu-Hernández, F. 2016. Nutrient concentration in leaves, a tool for nutritional diagnosis in cocoa. Agronomía Mesoamericana. 27, 2 (Jun. 2016), 329–336. DOI:https://doi.org/10.15517/am.v27i2.19728.