Kettle, Arnold
Hutchinson & CO (Publisher) LTD, 1967
Buku Teks
Kettle, Arnold
Hutchinson University Library , 1972
Buku Teks
Church, Richard
Methuen, 1951
Buku Teks
Allen, Walter
E.P. Dutton, 1954
Buku Teks
Diding Fahrudin, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1990
UI - Skripsi (Membership)