SWAIN, B. K.; NAIK, P. K.; SAHOO, S. K.; MISHRA , S. K.; KUMAR, Dhirendra. Effect of Feeding of Azolla (Azolla pinnata) on the Performance of White Pekin Laying Ducks. International Journal of Livestock Research, India, v. 8, n. 8, p. 248–253, 2018. Disponível em: http://ijlr.org/ojs_journal/index.php/ijlr/article/view/1668. Acesso em: 22 feb. 2026.