Firmansyah, Fachril Bachtiar, NurLita Dwi Putri Destriana, and Fetty Ernawati. 2026. “Optimizing Learning Quality through KAIZEN Principles in an Islamic Junior High School”. Indonesian Journal of Innovative Teaching and Learning 3 (2):106-16. https://doi.org/10.64420/ijitl.v3i2.597.