Eshqurbonov, F., A. Raximov, X. Xudoyqulov, and M. O‘ralova. “TUPROQLARDA UCHRAYDIGAN ORGANIK UGLEROD MIQDORINI ‘WALKLEY-BLACK’ USULI YORDAMIDA ANIQLASH”. Farg’ona Davlat Universiteti, vol. 30, no. 2, June 2024, p. 122, https://journal.fdu.uz/index.php/sjfsu/article/view/4027.