ARWIN, Arwin; HAMZALI, Said. Effect of Work Productivity on Employee Performance of Pdam Tirta Sejuk (Study In Customer Relationship). Eqien - Jurnal Ekonomi dan Bisnis, [S. l.], v. 11, n. 02, p. 557 – 559, 2022. DOI: 10.34308/eqien.v11i02.981. Disponível em: https://www.stiemuttaqien.ac.id/ojs/index.php/OJS/article/view/981. Acesso em: 26 aug. 2026.