BARAKAT, Ahmed, KHELLOUK, Rida, ENNAJI, Widad and MOSAID, Hassan. Investigation of heavy metal contamination and ecological and health risks in farmland soils from southeastern phosphate plateaus of Khouribga (Morocco). Ecological Questions. Online. 17 August 2022. Vol. 33, no. 4, pp. 61-75. [Accessed 18 July 2024]. DOI 10.12775/EQ.2022.036.