M. A. Shad, M. Aman ullah and R. Perveen (2009) “ESTIMATION OF SERUM CHOLINESTERASE ACTIVITY OF OCCUPATIONALLY EXPOSED WORKERS OF A FERTILIZER PLANT”, Sindh University Research Journal - SURJ (Science Series), 41(1). Available at: https://sujo.usindh.edu.pk/index.php/SURJ/article/view/6160 (Accessed: 18June2026).