Subramanian, Vivek, and Omkar Gupte. “Functionalization of Poly (Ether Sulfone) (PES) and Polysulfone (PSF) Membrane”. The Bombay Technologist, vol. 64, no. 1, Jan. 2014, pp. 22-26, https://bombaytechnologist.in/index.php/bombaytechnologist/article/view/109131.