Sari, Erika Narullita, et al. “Developing Sustainable Learning Effectiveness through Teacher Key Performance Indicators (KPI) Implementation in the Digital Era and Human-Centered Society 5.0”. Jurnal Buana Teknologi Pendidikan, vol. 2, no. 2, Oct. 2026, pp. 14-24, https://doi.org/10.36456/xahd1360.