A. Elisabeth Rattu, G. H. Tulungen, N. W. J. Mandagi, J. K. Kampilong, and J. Masinambow, “Analysis of Factors Influencing Contractor Performance in Supporting Infrastructure Sovereignty in North Sulawesi”, j. of appl. civ. Engineering and infrastruct. Technology, vol. 6, no. 1, pp. 36-45, Mar. 2025.