R. Imtiaz, S. Ashraf, A. Tahir, A. Shabbir, M. Sughra, and A. Khalid, “Estimation of Cobalt Level in Blood, Hair and Nails of Leather Industry Workers in Sialkot”, IJBR, vol. 3, no. 8, pp. 260–270, Aug. 2025, doi: 10.70749/ijbr.v3i8.2118.