Paweena Khansila และ Phuwanat Nakpradit; Prapaporn Nongharnpituk. (2023) The effect of Mathematics learning activities by usingGeoGebra in topic parabola for grade-9 students. <i>Journal of Science and Science Education</i>, <i>6</i>(2), 333-343.Paweena Khansila และ Phuwanat Nakpradit; Prapaporn Nongharnpituk. "The effect of Mathematics learning activities by usingGeoGebra in topic parabola for grade-9 students". Journal of Science and Science Education 6 (2023):333-343.Paweena Khansila และ Phuwanat Nakpradit; Prapaporn Nongharnpituk. The effect of Mathematics learning activities by usingGeoGebra in topic parabola for grade-9 students. Faculty of Science, Ubon Ratchathani University:ม.ป.ท. 2023.