Loaiza, V., and J. Gutiérrez. “Abundance and Diversity of Callembola (Entognatha) in Corn Crop Ecosystems Without Applying Agrochemicals, Pasture Ground and Dry Tropical Forest in San Roque, San Francisco, Veraguas”. Revista Colón Ciencias, Tecnología Y Negocios, vol. 4, no. 1, Jan. 2017, pp. 14-26, https://revistas.up.ac.pa/index.php/revista_colon_ctn/article/view/340.