Mubbashir Abbas. “REMOVAL OF CHROMIUM (VI) AND COBALT IONS FROM AQUEOUS SOLUTION USING HYPERBRANCHED POLYETHYLENEIMINE IMPREGNATED AG-GO MIXED MATRIX MEMBRANE”. Spectrum of Engineering Sciences 3, no. 12 (December 9, 2025): 90–103. Accessed June 25, 2026. https://thesesjournal.com/index.php/1/article/view/1620.