Karimkulov, K. M., I. E. Uzaqov, and D. M. qizi Abdumannobova. “Kofening Turlari, Kimyoviy Sifatini Aniqlash Va Tasniflash Usullari”. Science and Education, vol. 5, no. 2, Feb. 2024, pp. 166-7, https://openscience.uz/index.php/sciedu/article/view/6687.