Baker, Nancy L.
The Modern Language Association of america, 1985
Buku Referensi
Ellis, Peter, 1969-
Learning Matters, 2019
Buku Teks SO
Daula Gina Fabila
Fakultas Ilmu Keperawatan Universitas Indonesia, 2023
UI - Skripsi Membership
Wilson, Holly Skodol
Addison-Wesley, 1985
Buku Teks SO
[publisher not identified], [date of publication no identified]
Buku Teks