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?DETERMINATION OF TRACE ELEMENTS IN BARLEY, BEET AND PURSLANE OF KALABSHA AREA OF ASWAN IN EGYPT. Pakistan Journal of Scientific & Industrial Research [Internet]. 1995 Dec. 18 [cited 2026 Mar. 21];38(11-12):410-3. Available from: https://www.biostaging.pjsir.org/index.php/biological-sciences/article/view/2535