YUDEA, F.; SINAGA, E. .; PANDIANGAN , J. R. .; GULO, H. .; PURBA, P. Y. Pengaruh Gaya Kepemimpinan, Budaya Organisasi, Kedisiplinan terhadap Produktivitas Kerja Karyawan pada PDAM Tirtanadi Cabang Sei Agul Medan. Management Studies and Entrepreneurship Journal (MSEJ), [S. l.], v. 3, n. 3, p. 870–883, 2022. DOI: 10.37385/msej.v3i3.582. Disponível em: https://www.yrpipku.com/journal/index.php/msej/article/view/582. Acesso em: 6 jul. 2025.