Al-Sou’od, Khaldoun Abed, Mohammad Mustafa Saadelnour, and Mayyas Mohammad Al-Remawi. 2016. “Preparation and Characterization of Surface Active N-Butyrated Low Molecular Weight Chitosan”. European Journal of Chemistry 7 (1):91-96. https://doi.org/10.5155/eurjchem.7.1.91-96.1353.