Duressa, T.F. and Leta, S. (2015) “Determination of Levels of As, Cd, Cr, Hg and Pb in Soils and Some Vegetables Taken from River Mojo Water Irrigated Farmland at Koka Village, Oromia State, East Ethiopia”, International Journal of Sciences: Basic and Applied Research (IJSBAR), 21(2), pp. 352–372. Available at: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/3768 (Accessed: 11 September 2025).