Huseyn, Afag, Elnura Shafizade, Sugra Humbatova, and Tahmasib Huseynov. “The Impact of Digitalization on the Income of Authors of Educational Products: Analysis of the Influence of Factors Based on Fuzzy Logic”. Journal of Eastern European and Central Asian Research (JEECAR) 10, no. 7 (December 3, 2023): 1048–1062. Accessed July 22, 2024. https://ieeca.org/journal/index.php/JEECAR/article/view/1371.