Nurtakanova И.У., and Pikuleva О.А. “Methodological Approach to Studying Leadership Qualities of Small and Medium-Sized Business Managers under Conditions of Uncertainty”. Journal of Economic Research & Business Administration 155, no. 1 (March 20, 2026). Accessed March 23, 2026. https://be.kaznu.kz/index.php/math/article/view/3101.