Seaman, Catherine H. C., author
Appleton Century Cropts, 1982
Buku Teks
Baker, Nancy L., author
The Modern Language Association of america, 1985
Buku Referensi
Ellis, Peter, 1969-, author
Learning Matters, 2019
Buku Teks
Daula Gina Fabila, author
Fakultas Ilmu Keperawatan Universitas Indonesia, 2023
UI - Skripsi (Membership)
Meyta Dwinarta, author
2017
UI - Skripsi (Membership)