Kaharuddin, A., García García, J., Magfirah, I., & Yulismayanti, Y. (2025). Validating a TPCK-S Instrument for Hologram-Based Mathematics Teaching. Indonesian Journal on Learning and Advanced Education (IJOLAE), 7(3), 525–536. https://doi.org/10.23917/ijolae.v7i3.12119