Optimization of Cellulose Nano-fibers and Castor Oil in the Synthesis of Starch-carrageenan-polyvinyl Alcohol Bio-thermoplastic Film. Pakistan Journal of Analytical & Environmental Chemistry, Pakistan, v. 25, n. 1, p. 31–48, 2024. DOI: 10.21743/pjaec/2024.06.04. Disponível em: https://pjaec.pk/index.php/pjaec/article/view/4. Acesso em: 5 nov. 2025.