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 (Oct. 2025), 115–126. DOI:https://doi.org/10.5281/zenodo.19037873.