AINI, Nur; NASUTION, Ade Parlaungan; SIREGAR, Nurintan Asyiah. The Effect of Work Environment, Work Ethics, Work Culture, and Work Motivation on Performance of Environmental Services in Labuhanbatu Regency. Quantitative Economics and Management Studies, [S. l.], v. 3, n. 5, p. 714–720, 2022. DOI: 10.35877/454RI.qems1061. Disponível em: https://qemsjournal.org/index.php/qems/article/view/1061. Acesso em: 23 jun. 2026.