TRUJILLO-E., H. I., L. F. ARISTIZÁBAL-A., A. E. BUSTILLO-P., and M. JIMÉNEZ-Q. “Evaluation of Methods to Quantify Populations of the Coffee Berry Borer Hypothenemus Hampei (Ferrari) (Coleoptera: Curculionidae: Scolytinae), in Farms of Coffee Growers Experimenters”. Revista Colombiana De Entomología, vol. 32, no. 1, June 2006, pp. 39-44, doi:10.25100/socolen.v32i1.9356.