Rahmi Mulia Yanti, Ulfia Rahmi, Alwen Bentri and Hani Fannisa 2026. Effects of the Flipped Classroom on Conceptual ‎Understanding and Learning Readiness in Vocational ‎Mathematics: A Quasi-Experimental Study. JPI: Jurnal Pustaka Indonesia. 6, 2 (Aug. 2026), 342–359. DOI:https://doi.org/10.62159/jpi.v6i2.2588.