Kadhim Wasaf, Atheraa Abdul, et al. “Syntheses and Characterization of Chitosan-Expired Amoxicillin Natural Rubber Copolymers for Slow-Release Fertilizer”. Asian Journal of Chemistry, vol. 35, no. 4, Aug. 2023, pp. 896-04, doi:10.14233/ajchem.2023.27573.