1. Amin, H., Kevin, R. Messenger, K.R., Borzée, A. 2021. First record of heterospecific amplexus behaviour between Pelophylax plancyi (Lataste, 1880) and P. nigromaculatus (Hallowell, 1861) from Nanjing, China. Herpetology Notes, 14, 773-774.
2. Ayres, C. 2008. Multiple amplexus in the Iberian Brown Frog Rana iberica. North-Western Journal of Zoology, 4 (2), 327-330.
3. Decemson, Ht., Biakzuala, L., Lalremsanga, H. T. 2020. Interspecific amplexus between two sympatric species, Amnirana nicobariensis (Stoliczka, 1870) and Microhyla berdmorei (Blyth, 1856) at Tuitun stream, Mizoram, India. Herpetology Notes, 13, 433-434.
4. Đorđević, S., Simović, A. 2014. Strange affection: male Bufo bufo (Anura: Bufonidae) passionately embracing a bulge of mud. Ecologica Montenegrina, 1 (1), 15-17.
5. Duellman, W. E., Trueb, L. 1994. Biology of Amphibians. The Johns Hopkins University Press, Baltimore-London, 1-670.