Dar, Firdous Ahmad, et al. “A Post-Hatch Developmental Study of Conchae in Kuttanad Ducks (Anasplatyrhynchos Domesticus)”. Indian Journal of Veterinary Anatomy, vol. 26, no. 2, Jan. 2015, https://epubs.icar.org.in/index.php/IJVA/article/view/45742.