Fattoheva Mohichekhra Bobir`S Kizi, Boboyorova Shakhnoza Majid’s Kizi, Khaitov Farkhod Joraevich, and Yuldashev Khabibulla Abdurasulevich, “STUDY OF EXTRACT SUBSTANCES OF WHITE BIRCH BARK”, eijmrms, vol. 4, no. 06, pp. 14–17, Jun. 2024.