Close, R.A.
English we use anthology of current usage with exercises for practice in the spoken and written language / Close R.A.
Longmans , 1967
 Buku Teks
Stone, Linton
Cambridge proficiency English / Linton Stone
Macmillan, 1967
 Buku Teks
Kurnia Megiyatri
Profil Tampilan Visual dan Verbal Bahan Ajar Bahasa Inggris: Analisis Multimodal dan Fungsi Tutur = Profile of Visual and Verbal in English Teaching Material: Multimodal Analysis and Speech Function
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia;, 2023
 UI - Tugas Akhir
Low, Ona
Proficiency in english course
Edward Arnold, 1986
 Buku Teks
Graver, B.D.
Advanced English practice / by B.D. Graver
Oxford University Press, 1990
 Buku Teks