G. Mahapatra, S. Biswas, D. Bhattacharya, and G. Patra, “Residual level of Chromium, Copper and Manganese in Soil and Water of N-24 Parganas (West Bengal) and its Relation to Chevon quality”, IJBSM, vol. 10, no. Apr, 2, pp. 141–145, Apr. 2019.