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Massalimova Bakytgul Kabykenovna; Shorayeva Kamshat Abitkhanovna; Naurzkulova Symbat Muratbekovna; Jetpіsbayeva Gulіm Danebaevna; Altynbekova Dіnara Tansykovna; Amanzhol Zhuldyz Erbatyrkyzy; Sadykov Vladіslav Alesandrovіch. THE CATALYTICAL OXIDATION OF PROPAN-BUTANE MIXTURE ON THE HYDROGEN AND HYDROGEN СОNTENT COMPOUNDS. SCT 2019, 21-25.