Fatimah Hasibuan S, Sutatminingsih R, Maulina Ozar B. Concrete Pictorial Abstract (CPA) Method-Based Intervention to Improve Understanding of Two-Digit Addition Concepts in Children with Mathematics Learning Difficulties. at-tadib [Internet]. 2025 Dec. 27 [cited 2026 Feb. 12];9(3):760-83. Available from: http://150.107.142.43/index.php/at-tadib/article/view/22314