“Spectrophotometric determination of Zinc(II) in solutions samples using 1-azobenzene-3-(3-hydroxyl-2-pyridyl)-triazene in the Surkhandarya region” (2023) American Journal of Engineering , Mechanics and Architecture (2993-2637), 1(10), pp. 16–20. Available at: https://grnjournal.us/index.php/AJEMA/article/view/1764 (Accessed: 17 January 2026).