BY, Ismawan, et al. “The Effect of Contract Value on the Performance of the Security Unit (Security Guard) of PT. Multi Daya Utama”. JENIUS (Jurnal Ilmiah Manajemen Sumber Daya Manusia), vol. 9, no. 2, Mar. 2026, pp. 302-8, doi:10.32493/JJSDM.v9i2.58603.