Rahmatulloh, A., M. D. Hidayati, and A. N. Fajaria. “The Influence of Polyvinyl Alcohol Concentration Toward Conductivity and Permeability of chitosan–montmorillonite Composite Membrane: Scientific Paper”. Journal of the Serbian Chemical Society, vol. 89, no. 3, Apr. 2024, pp. 399-13, doi:10.2298/JSC230919016R.