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2. Key biodiversity areas in the Philippines: priorities for conservation;Ambal;J. Threat. Taxa,2021
3. Anon,An Act Regulating the Catching, Sale, Purchase, Possession, Transportation, Importation, and Exportation of All Sharks, Rays, and Chimaeras and any Part Thereof in the Country, (2018) (testimony of Risa Hontiveros).
4. Anon, Convention on International Trade in Endangered Species of Wild Fauna and Flora. (1973). 〈https://cites.org/eng/disc/text.php〉.
5. Anon, Convention on the Conservation of Migratory Species of Wild Animals. (1979). 〈https://www.cms.int/en/convention-text〉.