Masangcay, Shirlamaine Irina, Metillo, Ephrime, Hayashizaki, Ken-Ichi, Tamada, Satoru, AND Nishida, Shuhei. " Feeding Habits of Mobula japanica (Chondrichthyes, Mobulidae) in Butuan Bay, Mindanao Island, Philippines" Science Diliman: A Journal of Pure and Applied Sciences [Online], Volume 30 Number 1 (4 April 2018)