Chekhla, S. (2025) “THE PLACE OF THE PORTFOLIO OF PROJECTS AND PROGRAMS IN THE STRATEGIC MANAGEMENT SYSTEM: A COMPARATIVE ANALYSIS OF THE PMI, PRINCE2 (MOP), SAFE AND BALANCED SCORECARD APPROACHES”, European Journal of Interdisciplinary Issues, 2(3), pp. 115–126. doi: 10.5281/zenodo.19037873.