Egri, M., G. Gunes, E. Pehlivan, and M. Genc. “Investigation on Trends of Air Pollution in Malatya City Center in Recent Five Years Period”. Annals of Medical Research, vol. 4, no. 4, May 2021, pp. 0375-9, http://www.annalsmedres.org/index.php/aomr/article/view/2647.