H. ABDOULQADIR , Chia; A. MOHAMMED, Farhad. Spatial distribution and source identification of major and trace elements in topsoil from Erbil region, Iraq. Tikrit Journal of Pure Science, [S. l.], v. 30, n. 5, p. 20–36, 2025. DOI: 10.25130/tjps.v30i5.1783. Disponível em: https://www.tjpsj.org/index.php/tjps/article/view/1783. Acesso em: 6 nov. 2025.