Ha, Nguyen Van. “The Description of Two New Species Helicometra Pisodonophi Sp. N. and Opecoelus Haduyngoi Sp. N. (Trematoda: Opecoelidae) from Marine Fishes in Ha Long Bay, Vietnam”. Academia Journal of Biology 34, no. 2 (June 5, 2012): 133–138. Accessed November 25, 2024. https://vjs.ac.vn/index.php/vjbio/article/view/949.