lilisnawati, Ismail Rasulong, and Sri Andayaningsih. 2026. “Human Resources Development in the Context of Improving Service Quality at the West Sebatik Sub-District Office, Nunukan Regency, North Kalimantan Province”. Al-Kharaj: Journal of Islamic Economic and Business 8 (2). https://doi.org/10.24256/kharaj.v8i2.11054.