The Effect of Treatment Soybean Meal with Azolla (Azolla pinnata var.) Fortified with Mixture and Fermentation on the Productive Characteristics of Local Duck. Int. J. Environ. Sci. [Internet]. 2025 May 5 [cited 2025 Nov. 17];11(3s):133-45. Available from: https://theaspd.com/index.php/ijes/article/view/284