Suwannapan, Wipawadee, Supawadee Ngankoh, Teerasak E-kobon, and Pramote Chumnanpuen. 2019. “Mucous cell distribution and mucus production during early growth periods of the giant African snail (Achatina fulica)”. Agriculture and Natural Resources 53 (4). Bangkok, Thailand:423-28. https://li01.tci-thaijo.org/index.php/anres/article/view/228762.