Samanery, R.D. and Suyud 2025. Challenges and Competency Gaps in the Implementation of 21st Century Learning: Evidence from Junior High Schools in Ambon, Indonesia. Belajea: Jurnal Pendidikan Islam. 10, 2 (Dec. 2025), 525–536. DOI:https://doi.org/10.29240/belajea.v10i2.14517.