SULISTYORINI, A. (2015). The Analysis of Speaking Materials in The Electronic Textbook (Bse-Buku Sekolah Elektronik) Entitled “Bahasa Inggris” for Tenth Graders of Senior High School or Vocational High School for Semester One Published By Pusat Kurikulum dan Perbukuan. RETAIN : Journal of Research in English Language Teaching, 3(2). Retrieved from https://ejournal.unesa.ac.id/index.php/retain/article/view/12381