Herrero, M. V., A. Urbina, H. Gutiérrez, A. Jiménez, R. Pereira, and C. Rivera. “Peridomiciliary Latrines and Phlebotominae Sandfties (Diptera: Psychodidae) in a Focus of Leishmaniasis in Costa Rica”. Revista De Biología Tropical, vol. 39, no. 1, June 1991, pp. 155–157, https://revistas.ucr.ac.cr/index.php/rbt/article/view/24842.