Simarmata N, Sir ZME, Pristiyono P. The Influence of Work Discipline, Work Environment, and Work Productivity, on Employee Performance at the Youth and Sports Office, Culture and Tourism of Labuhanbatu Regency. Quant. Econ. Manag. Stud. [Internet]. 2022 Jun. 28 [cited 2026 May 2];3(3):394-401. Available from: https://qemsjournal.org/index.php/qems/article/view/953