Robert, J., and S. Okidim. “ASSESSING THE DISPERSION LEVELS OF TRACE ELEMENTS IN AIR FROM CONCRETE SITE BY DRY DEPOSITION”. Faculty of Natural and Applied Sciences Journal of Scientific Innovations, vol. 3, no. 1, Nov. 2021, pp. 1-10, https://fnasjournals.com/index.php/FNAS-JSI/article/view/13.