SYNTHESIS AND IR SPECTROSCOPIC ANALYSIS OF Co(II), Ni(II) AND Cu(II) ION COMPLEXES WITH SULFANILAMIDE AND NICOTINAMIDE. Qo‘qon DPI. Ilmiy xabarlar jurnali [Internet]. 2026 Mar. 18 [cited 2026 Jun. 10];8(2):223-32. Available from: https://journals-kokandsu.uz/index.php/kspi/article/view/300