“Preparation and Characterization of Solid Polymer Electrolyte Based on Carboxymethyl Chitosan, Ammonia Nitrate and Ethylene Carbonate”, EPSTEM, vol. 2, pp. 10–16, Aug. 2018, Accessed: Jul. 28, 2026. Available: https://epstem.net/index.php/epstem/article/view/57