Kanagavel, Arun, et al. “Distribution and Habitat Associations of the Critically Endangered Frog Walkerana Phrynoderma (Anura: Ranixalidae), With an Assessment of Potential Threats, Abundance, and Morphology”. Phyllomedusa: Journal of Herpetology, vol. 17, no. 1, June 2018, pp. 21-37, https://doi.org/10.11606/issn.2316-9079.v17i1p21-37.