[1]
R. S. MALIK, H. K. YADAV, N. NARENDER, R. RAJPAUL, and P. S. SANGWAN, “Background levels of zinc, iron, manganese and copper in soil series of Haryana and their relationship with soil properties”, Indian J Agri Sci, vol. 87, no. 8, pp. 1094–1098, Aug. 2017, doi: 10.56093/ijas.v87i8.73279.