Rafati, maryam, taghavi, armita, Karbassi, Abdolreza. “Share of Natural and Anthropogenic Resources in Heavy Metals Distribution in the Soils arround Venarch Manganese Mine in Qom.” Journal of Environmental Science and Technology, vol. 21, no. 4, 2019, pp. 153-160. 10.22034/jest.1970.14657