Khairiyah, Shamita, and Nur Aisyah. “The Influence Of Competence And Work Discipline On Increasing Employee Productivity Employee Work Productivity At Pt. Bprs Puduarta Insani Tembung North Sumatera”. SAJMR : Southeast Asian Journal of Management and Research, vol. 3, no. 2, Mar. 2025, pp. 141-56, doi:10.61402/sajmr.v3i2.338.