B. Basak, M. A. H. Pramanik, M. S. Rahman, S. U. Tarafdar, and B. C. Roy, “Azolla (Azolla pinnata) as a Feed Ingredient in Broiler Ration”, Int. J. Poult. Sci., vol. 1, no. 1-3, pp. 29–34, Dec. 2001, doi: 10.3923/ijps.2002.29.34.