Riskiyanti, Laila, and Sri Eka Wulandari. 2024. “The Influence of Facilities and Infrastructure on the Effectiveness of Employee Work at PDAM Tirtanadi, Sunggal Branch, Medan”. Journal Boas : Business, Economics, Accounting And Management 2 (02):85-94. https://doi.org/10.54209/boas.v2i02.284.