Nasiba Ibrahimna Shonazarova. “DETERMINATION OF THE AMOUNT OF CHLOROPHYLL IN SOLANUM NIGRUM PLANT LEAVES INFECTED WITH POTATO Y VIRUS AT DIFFERENT LEVELS”. Galaxy International Interdisciplinary Research Journal, vol. 10, no. 12, Dec. 2022, pp. 50-53, https://giirj.com/index.php/giirj/article/view/4646.