Putri, Diana, Zulqoidi R. Habibie, and Aldino. 2025. “Students’ Conceptual Challenges in Learning Multiplication: Tantangan Konseptual Siswa Dalam Pembelajaran Perkalian”. Indonesian Journal of Innovation Studies 26 (4):10.21070/ijins.v26i4.1683. https://doi.org/10.21070/ijins.v26i4.1683.