“PROBLEMS OF GENERAL AND TYPOLOGICAL THEORY OF COMPOSITE SENTENCE WITH A PARENTHETICAL CLAUSE AS AN INVARIANT TYPE OF SYNTACTIC UNIT (to the Statement of Question of Parenthetical Introductory and Insertive Clauses)”. 2024. Scientific Journal of the Fergana State University 30 (1): 74. https://journal.fdu.uz/index.php/sjfsu/article/view/3559.