Petroshchuk NR. SYSTEM OF INCRESING QUALIFICATION OF TEACHERS FOR PUBLIC SCHOOLS IN UKRAINE AT THE END OF XIX CENTURY – AT THE BEGINNING OF XX CENTURY: THE HISTORIOGRAPHY OF THE PROBLEM. OD [Internet]. 2014 Mar. 13 [cited 2024 Nov. 24];(1 (5):182-93. Available from: https://od.kubg.edu.ua/index.php/journal/article/view/97