Yarman, Y., Yerizon, Y., Dwina, F., Murni, D., & Hevardani, K. A. (2024). Analysis of Concept Construction and Student Errors on the Topic of Double Integral Based on APOS Theory. Jurnal Pendidikan Matematika, 18(3), 367–386. https://doi.org/10.22342/jpm.v18i3.pp367-386