“THE IMPACT OF VITAMIN B12 DEFICIENCY ON LEARNING PERFORMANCE AND NERVOUS SYSTEM FUNCTION IN SCHOOL-AGED CHILDREN”, Amer. Jour. of Rese. in Human. and Soci. Scie., vol. 46, pp. 53–60, Mar. 2026, Accessed: Apr. 29, 2026. [Online]. Available: https://americanjournal.org/index.php/ajrhss/article/view/3444