Hasibuan FI. Speaking Materials’ Eligibility Standard in "Bahasa Inggris Kelas XI SMK" Textbook. TRANSFORM [Internet]. 30 September 2025 [dikutip 30 September 2026];14(3):134-45. Tersedia pada: https://jurnal.unimed.ac.id/2012/index.php/jelt/article/view/68748