Ivanova Karina Andriivna, Khirina Anna Oleksandrivna and Balabay Yana Volodymyrivna (2020) “THE CONTRIBUTION OF MYKOLA SUMTZOV IN THE STUDY OF ALEXANDR PUSHKIN LEGACY (BASED ON KHARKIV MATERIALS)”, World Science, 3(5(57), pp. 20-24. doi: 10.31435/rsglobal_ws/31052020/7084.