Prado, Gustavo M., et al. “ Call Diversity of Leptodactylus Natalensis Lutz, 1930 (Anura; Leptodactylidae) ”. Papéis Avulsos De Zoologia, vol. 47, no. 6, Jan. 2007, pp. 97-103, https://doi.org/10.1590/S0031-10492007000600001.