1. Adriano, D. C. (2001). Trace elements in terrestrial environments: Biogeochemistry, bioavailability and risks of metals (2nd ed., p. 867). New York: Springer.
https://doi.org/10.1007/978-0-387-21510-5
.
2. Amponsah-Dacosta, F. (2015). A field-scale performance evaluation of erosion control measures for slopes of mine tailings dams. In Presented at the 10th international conference on acid rock drainage and IMWA annual conference. Santiago: Gecamin.
3. Angelova, V. R., Akova, V. I., Artinova, N. S., & Ivanov, K. I. (2013). The effect of organic amendments on soil chemical characteristics. Bulgarian Journal of Agricultural Science,19(5), 958–971.
4. Angelova, V., Ivanova, R., Pevicharova, G., & Ivanov, K. (2010). Effect of organic amendments on heavy metals uptake by potato plants. In Soil solutions for a changing world. Presented at the 19th world congress of soil science (p. 5). Brisbane.
5. Antwi-Agyei, P., Hogarh, J. N., & Foli, G. (2009). Trace elements contamination of soils around gold mine tailings dams at Obuasi, Ghana. African Journal of Environmental Science and Technology, 3(11), 353–359.