“PSYCHOLOGICAL FOUNDATIONS OF DEVELOPING MEMORY PROCESSES THROUGH MENTAL ARITHMETIC IN PRIMARY EDUCATION”, Wor. Bul. of Edu. and Lea., vol. 1, no. 02, pp. 452–463, Dec. 2025, Accessed: Apr. 29, 2026. [Online]. Available: http://worldbulletin.org/index.php/1/article/view/134