Webster, Frank, author
Routledge, 1995
Buku Teks
Webster, Frank, author
Routledge, 1995
Buku Teks
Webster, Frank, author
Routledge, 2014
Buku Teks
Evans, Laurence, author
Charles Knight, 1973
Buku Teks
Shafira Efrie Yunianthi, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2019
UI - Makalah dan Kertas Kerja