Zakaria, M., T. Wahyono, and Y. Anwar. “Analysis of the Impact of Work Discipline and Social Security on Employee Work Productivity at PT. Sawitta Unggul Jaya”. Jurnal Fokus Manajemen, Vol. 6, no. 2, May 2026, pp. 313-22, doi:10.37676/jfm.v6i2.11034.