Lezcano-B., J., and R. Morales. “BIOLOGICAL EFFICIENCY OF THE INSECTICIDE ZETA CIPERMETHRIN FOR THE MANAGING OF Plutella Xylostella (L.) (LEPIDOPTERA: PLUTELLIDAE) IN CABBAGE. PANAMA. 2001.”. Ciencia Agropecuaria, no. 14, Sept. 2003, pp. 67-80, http://200.46.165.126/index.php/ciencia-agropecuaria/article/view/319.