Yusnita Nasution WSBS. Error Analysis Students’ Ability in Using Regular and Irregular Verb at the Second Grade of SMP Satria Dharma Perbaungan. CE [Internet]. 2023 May 12 [cited 2025 Aug. 1];4(1):40-9. Available from: https://pusdikra-publishing.com/index.php/josr/article/view/1325