Elshahawy, A. G., Badr, S. I., & Shadi, A. A. (2018). Synthesis and Structural Characteristics of Semi-Synthetic Biopolymer Blends Based on Polyvinyl Alcohol, Starch and Chitosan. JOURNAL OF ADVANCES IN PHYSICS, 14(2), 5554–5563. https://doi.org/10.24297/jap.v14i2.7477