“Checklist and Simple Identification Key for Frogs and Toads from District IV of The MADA Scheme, Kedah, Malaysia”. Tropical Life Sciences Research 20, no. 2 (December 31, 2009): 49–57. Accessed December 23, 2024. https://ejournal.usm.my/tlsr/article/view/tlsr_vol20-no-2-2009_4.