LAILI VIANDARI, ARI. “Grammatical Error Analysis of Speaking for Eight Grade Students of SMPN 1 Benjeng Gresik”. Retain: Journal of Research in English Language Teaching 7, no. 2 (July 17, 2019). Accessed July 29, 2026. https://ejournal.unesa.ac.id/index.php/retain/article/view/29231.