Churchill Livingstone, 1989
Buku Referensi
Rossi, Renzo, author
Macmillan, 1996
Buku Referensi
by Renzo Rossi
Macmillan, 1996
Buku Referensi
Rossi, Renzo, author
Macmillan, 1996
Buku Referensi
L. Astakhova ...[et al.]; editor, N. Fudel
Foreign Languages Publishing House, [date of publication not identified]
Buku Teks