Rubiyanto SM. Error Analysis on the Use of Part of Speech in Students’ Essay Writing at Secondary School EFL Classroom. RETAIN : J. Res. Engl. Lang. Teach. [Internet]. 2025 May 2 [cited 2025 Jun. 30];12(02):65-72. Available from: https://ejournal.unesa.ac.id/index.php/retain/article/view/60180