https://www.savephilippineseas.org/conservephsharks-manuals-/pating-ka-ba%3F-an-identification-guide-for-sharks%2C-batoids-and-chimaeras-of-the-philippines 2023-12-20 https://www.savephilippineseas.org/conservephsharks-manuals-/philippine-aquatic-wildlife-rescue-and-response-manual-series%3A-sharks-and-rays 2023-12-20