S. T. C. L. Ndruru, D. Wahyuningrum, B. Bundjali, and I. M. Arcana, “Preparation and Characterization of Biopolymer Electrolyte Membranes Based on LiClO4-Complexed Methyl Cellulose as Lithium-ion Battery Separator”, J. Eng. Technol. Sci., vol. 52, no. 1, pp. 28-50, Feb. 2020.