Mun, G. A., Utkelov, D. Z., Kazybayeva, D. S., Saduova, A. O., Mangazbayeva, R. A. and Negim, E. (2014) “Synthesis and study of phospate-polyalkyleneoxide flotation reagent for oxidized minerals”, International Journal of Biology and Chemistry, 7(2), pp. 61–64. doi: 10.26577/2218-7979-2014-7-2-61-64.