Kulisz, M., Zhumabekova, J., Firsova, E., Aubakirova, Z., & Zhairbaeva, G. (2022). Implementation of the quality management system in the enterprise producing bentonite clay. Bulletin of L.N. Gumilyov Eurasian National University Technical Science and Technology Series, 141(4), 127–139. https://doi.org/10.32523/2616-7263-2022-141-4-127-139