“?DETERMINATION OF TRACE ELEMENTS IN BARLEY, BEET AND PURSLANE OF KALABSHA AREA OF ASWAN IN EGYPT” (1995) Biological Sciences - PJSIR, 38(11-12), pp. 410–413. Available at: https://www.v2.pjsir.org/index.php/biological-sciences/article/view/2535 (Accessed: 10 March 2026).