“Exploring Eggshell Waste and Calotropis Gigantea Fibers for Eco-Friendly Ceiling Board Applications ”. Advances in Tropical Biodiversity and Environmental Sciences 9, no. 3 (December 30, 2025): 194–201. Accessed August 17, 2026. https://ejournal1.unud.ac.id/index.php/atbes/article/view/1241.