Abbas, M., Z. Parveen, M. Iqbal, M. Riazuddin, S. Iqbal, M. Ahmed, and R. Bhutto. “Monitoring of Toxic Metals (cadmium, Lead, Arsenic and Mercury) in Vegetables of Sindh, Pakistan”. Kathmandu University Journal of Science, Engineering and Technology, vol. 6, no. 2, Nov. 2010, pp. 60-65, doi:10.3126/kuset.v6i2.4013.