Ilyati Zahro, Vanny Rahmayanti Audina, and Akhtim Wahyuni. “EXTRACURRICULAR ABACUS TO IMPROVE THE COGNITIVE ARITHMETIC SKILLS OF CHILDREN AGED 5-6 YEARS ”. Academic Journal Research 2, no. 2 (December 5, 2024): 39–46. Accessed October 5, 2025. https://journal.antispublisher.com/index.php/acjoure/article/view/234.