CHIKHLYAEV, IGOR V, et al. “Short Communication: An Overview of the Trematodes Fauna of Pool Frog Pelophylax Lessonae (Camerano, 1882) in the Volga Basin, Russia: 1. Adult Stages”. Nusantara Bioscience, vol. 10, no. 4, Apr. 2019, pp. 256-62, https://doi.org/10.13057/nusbiosci/n100410.