Liao, Lawrence Manzano, and Paul John Legaspi Geraldino. 2020. “Has Halophila Beccarii Ascherson (Alismatales, Hydrocharitaceae) Been Locally Extirpated in the Philippines?”. Tropical Natural History 20 (1):104-10. https://li01.tci-thaijo.org/index.php/tnh/article/view/206130.