“STUDY OF WATER CONTENT, DISSOLVING TIME, AND YIELD OF DUCK EGGSHELL FLOUR WITH DIFFERENT COOKING METHODS AND TIMES”. ANGON: Journal of Animal Science and Technology 3, no. 2 (September 1, 2021): 192–200. Accessed October 31, 2025. https://jnp.fapet.unsoed.ac.id/index.php/angon/article/view/207.