Advíncula Clemente, E.; Beteta Salas, M.; León Ríos, J. C.; Torres Céspedes, I.; Montes, M. Teachers’ Mathematical Knowledge of Parabolas: Designing an Instrument for Research. Uniciencia 2021, 35 (1), 190-209. https://doi.org/10.15359/ru.35-1.12.