Firnasari and M. Rizal, “REPRESENTASI SISWA KELAS XI SMKN 2 PALU DALAM MEMECAHKAN MASALAH FUNGSI KUADRAT: Representation Of Students Of Class Xi Smkn 2 Palu In Solving Quadratifical Function Problems”, JEPMT, vol. 11, no. 3, pp. 227-234, Mar. 2024.