S. Rozali, N. H. M. Safari, A. R. Hassan, M. Ahmad, and R. M. Yunus, “Assessment on Performance-properties of Asymmetric Nanofiltration Membranes from Polyethersulfone/n-Methyl-2-pyrrolidone/water Blends with Poly(vinyl pyrrolidone) as Additive”, Period. Polytech. Chem. Eng., vol. 66, no. 1, pp. 54–69, Jan. 2022.