SIRWAN YASSIN , Sazan; JABBAR TOMA, Janan. Concentration of heavy metals in some springs in the Shaqlawa district, Erbil Governorate, Kurdistan Region of Iraq. Tikrit Journal of Pure Science, [S. l.], v. 31, n. 2, p. 49–57, 2026. DOI: 10.25130/tjps.v31i2.1978. Disponível em: http://www.tjpsj.org/index.php/tjps/article/view/1978. Acesso em: 25 may. 2026.