Optimization of Cellulose Nano-fibers and Castor Oil in the Synthesis of Starch-carrageenan-polyvinyl Alcohol Bio-thermoplastic Film. Pak. J. Anal. Environ. Chem. [Internet]. 2024 Nov. 16 [cited 2025 Nov. 5];25(1):31-48. Available from: https://pjaec.pk/index.php/pjaec/article/view/4