“The Potential of Spirulina Powder As Feed Additive on Hepatic Histomorphometry in Peking Ducks (Anas Platyrhynchos)”. Biosaintifika: Journal of Biology & Biology Education 16, no. 3 (December 24, 2024): 481–489. Accessed December 5, 2025. https://journal.unnes.ac.id/journals/biosaintifika/article/view/9246.