Jannah, Firda Luthfiatika, and Cita Dwi Rosita. “Analisis Learning Obstacle Siswa SMP Dalam Memahami Konsep Luas Permukaan Limas”. PRISMA, vol. 12, no. 1, June 2023, pp. 121-30, https://jurnal.unsur.ac.id/index.php/prisma/article/view/2633.