Marpaung, L.; Silitonga, D. N.; Saruksuk, D. S. .; Purba, R.; Lubis, . B. N. A.; Lubis, . B. N. A. THE CHILDREN’S ABILITY TO PRONOUNCE CAPITAL LETTERS IN WORDS AT THE AGE OF 2-3 YEARS IN KAMPUNG LALANG MEDAN. ELT 2022, 4, 19-30.