Islam, G., Hossain, M., Iqbal, S. and Mollah, M. 2015. Assessment of Quality Status of Zinc Sulfate (hepta hydrate) Fertilizers Available in the Markets of Jessore Sadar Upazila. Journal of Environmental Science and Natural Resources. 8, 1 (Aug. 2015), 69–71. DOI:https://doi.org/10.3329/jesnr.v8i1.24674.