Sahrim, S., & Kholik, K. (2025). Analyzing the Impact of ISO 9001:2015 Implementation and Human Resource Characteristics on Employee Performance: The Role of Organizational Characteristics as an Intervening Variable at PDAM Tirtanadi, North Sumatra. International Journal of Economics, Management and Accounting (IJEMA), 3(3), 272–288. https://doi.org/10.47353/ijema.v3i3.333