Marupovna, Usmanova Nigina. “Factors Affecting the Efficiency of Bookselling Services and Methods for Their Determination”. Journal of Marketing and Emerging Economics 2, no. 12 (December 17, 2022): 22–27. Accessed July 22, 2024. https://openaccessjournals.eu/index.php/jmee/article/view/1733.