Fatimah Hasibuan, Siti, Raras Sutatminingsih, and Bania Maulina Ozar. 2025. “Concrete Pictorial Abstract (CPA) Method-Based Intervention to Improve Understanding of Two-Digit Addition Concepts in Children With Mathematics Learning Difficulties”. Attadib Journal of Elementary Education 9 (3):760-83. https://doi.org/10.32832/at-tadib.v9i3.22314.