XINGLI X. ANALYSIS OF THE SPEAKING MATERIALS IN TEXTBOOK“MANDIRI：PRACTISE YOUR ENGLISH COMPETENCE (FOR SMK AND MAK XI)”BASED ON 2006 ENGLISH STANDARD OF CONTENT (SI). RT [Internet]. 31Jul.2013 [cited 19May2024];1(3). Available from: https://ejournal.unesa.ac.id/index.php/retain/article/view/3475