KARIM, A. THE INFLUENCE OF SERVICE QUALITY AND COMPETENCY ON EMPLOYEE WORK EFFECTIVENESS AT LAUNDRY IN PERCUT SEI TUAN DELI SERDANG DISTRICT. Strategic Management Business Journal, [S. l.], v. 4, n. 01, p. 336–340, 2024. DOI: 10.55751/smbj.v4i01.89. Disponível em: https://journal.smbjupmi.com/index.php/smbj/article/view/89. Acesso em: 16 jan. 2026.