Margana, Agus Widyantoro. AN EVALUATION OF ENGLISH TEXTBOOK USED AT SENIOR AND VOCATIONAL HIGH SCHOOLS ORIENTED TO THE CURRICULUM 2013. RW-IRSSJ [Internet]. 2021 Aug. 31 [cited 2025 Aug. 9];7(4(1):108-19. Available from: https://researchersworld.com/index.php/rworld/article/view/539