Zayliddinov , Z. . “G‘O‘ZA HOSILDORLIGINI OSHIRISHDA KARBAMID O‘G‘ITIDAN FOYDALANISH”. Journal of Integrated Education and Research, vol. 1, no. 4, Sept. 2022, pp. 138-43, https://ojs.rmasav.com/index.php/ojs/article/view/239.