“PREPARATION AND CHARACTERIZATION OF GUARGUM 5-AMINO-1-NAPHTHOL-3-SULPHONIC ACID (GANSA) RESIN AND ITS USE FOR SEPARATION OF HEAVY METAL IONS FROM INDUSTRIAL WASTEWATER”, IJESMR, vol. 5, no. 4, pp. 34–41, Apr. 2018, Accessed: Feb. 04, 2026. [Online]. Available: https://ijesmr.com/index.php/ijesmr/article/view/456