Liumsiricharoen, Maleewan, Kamol Serikul, Urai Pongchairerk, Surapong Arthitvong, and Apantree Duangnjern. 1999. “Resin and Silicone Tracheobronchial Cast”. Agriculture and Natural Resources 33 (3). Bangkok, Thailand:363-67. https://li01.tci-thaijo.org/index.php/anres/article/view/240454.