Isabayev Z.,Zhumanova M. O.,Isabaev D. Z.,Zhumadullaeva S.K.,Isroilov E.T. “STUDY OF THE SOLUBILITY ISOTERM OF MANGANESE SULFATE - MONOETHANOLAMINE - WATER”. Spectrum Journal of Innovation, Reforms and Development, vol. 10, Dec. 2022, pp. 161-5, https://sjird.journalspark.org/index.php/sjird/article/view/438.