Agrawal, Vinod. “Four Trematode Parasites (Plagiorchiidae Lühe, 1901 Emend. Ward, 1917) from Reptiles of Lucknow”. Revista de Biología Tropical 14, no. 2 (December 1, 1966): 133–151. Accessed May 12, 2025. https://www.revistas.ucr.ac.cr/index.php/rbt/article/view/28488.