“‘ КОБАЛЬТ ВА НИКЕЛЬ (II) ИОННИНИ СОРБЦИОН-ФОТОМЕТРИК АНИҚЛАШ УСУЛЛАРИНИ ИШЛАБ ЧИҚАРИШ’” (2024) Proceedings of International Conference on Scientific Research in Natural and Social Sciences, 3(7), pp. 184–190. Available at: https://econferenceseries.com/index.php/srnss/article/view/5272 (Accessed: 26 October 2025).