ZHALDAK М, MOKROUSOVA О, MEREZHKO Н. Optimization of quality indicatorsof natural skins and their tanning parameters using montmorillonite. CM [nternet]. 2018 Dec. 17 [cited 2024 Nov. 21];28(4):75-84. vailable from: https://journals.knute.edu.ua/commodities-and-markets/article/view/1125