Hossain, AMM Maruf, Tasbee Monir, AM Rezwan Ul-Haque, M Azizul Islam Kazi, M Shahidul Islam, and Syed Fazle Elahi. 2008. “Heavy Metal Concentration in Tannery Solid Wastes Used As Poultry Feed and The Ecotoxicological Consequences”. Bangladesh Journal of Scientific and Industrial Research 42 (4):397-416. https://doi.org/10.3329/bjsir.v42i4.748.