VICTOR, E.I; LOUIS, I.C; ALFRED, N.O; OZIOMA, U.N. Use of Chicken Eggshells as Fillers in Flexible Polyurethane Foam Production. International Journal of Industrial Engineering, [S. l.], v. 3, n. 1, p. 1–6, 2019. DOI: 10.65000/w49y5h42. Disponível em: https://gjpublications.com/index.php/IJIE/article/view/102. Acesso em: 5 feb. 2026.