Siregar SAF, Rahayu S, Setiawan A. Analysis of the Impact of Work Motivation and Work Discipline on Employee Productivity at Kopi Mandja, Medan City Branch. J. Manag. Econ. Account. [Internet]. 2026 Oct. 30 [cited 2026 Oct. 31];5(4):2529-38. Available from: http://jurnalunived.com/index.php/JMEA/article/view/1886