Maleewan Liumsiricharoen, Teerasak Prapong, Chatchote Thitaram, Chaleamchat Somgird, Chatchai Sarachai, Warot Wongkalasin, Sittidet Mahasawangkul, Piyamart Kongtueng, Nikorn Tongtip, and Apinan Suprasert. 2005. “Gross and Microscopic Anatomy of Cranial Dura Mater of Asian Elephant (Elephas maximus)”. Agriculture and Natural Resources 39 (3). Bangkok, Thailand:477-81. https://li01.tci-thaijo.org/index.php/anres/article/view/243348.