Syahruddin, Erman, Rita Herawaty, and Azhar. “Effects of Replacing Soybean Meal With Fermented Leaves and Seeds of the Rubber Tree (Hevea Brasiliensis) on the Production and Egg Quality of Kamang Laying Ducks”. Pakistan Journal of Nutrition 18, no. 2 (January 15, 2019): 153–158. Accessed August 30, 2025. https://pjnonline.org/pjn/article/view/2684.