Yodgorov , R.A. ogli, Yusupov , A.S., Khudoykulova , G.I. qizi and Primkulova , M.O. qizi 2023. SYNTHESIS AND STUDY OF SORBENTS CONTAINING NITROGEN AND SULFUR BASED ON MELAMIN FORMALDEHYDE RESIN. SCHOLAR. 1, 33 (Dec. 2023), 337–343.