Tulembayev, A. N., and D. Y. Belousov. “Modern Approaches to the Development of an Integrated Project Management System for SMEs”. Journal of Economic Research & Business Administration 102, no. 2 (February 27, 2015): 164–169. Accessed November 21, 2024. https://be.kaznu.kz/index.php/math/article/view/82.