M.S. Shaikh, K. Qureshi, and I. Bhatti. 2011. “Utilization Of Tea Waste For The Removal Of Arsenic (III) From Aqueous Solution”. Sindh University Research Journal - SURJ (Science Series) 43 (1). https://sujo.usindh.edu.pk/index.php/SURJ/article/view/6004.