Darmawan, P., Salsabiila, A. S., & Olivero-Acuña, R. R. (2025). PAPUTRI (Trigonometric Rotating Board) as an innovation to enhance mathematics learning in trigonometry. Panicgogy International Journal, 3(2), 39–53. https://doi.org/10.59965/pij.v3i2.170