Trinh TH, Le CC, Bui TTB, Nguyen THP, Kawahara S, Phan TN. Preparation of Ionic Conductivity Polymer Electrolyte Film Based on Epoxidized Deproteinized Natural Rubber. ETSD. 2021;31(4):68-74. doi:10.51316/jst.153.etsd.2021.31.4.12