edited by Martin H. Manser
W & R Chambers, 1995
Buku Referensi
editor, Laurence Urdang
Macmillan Reference Books, 1995
Buku Referensi
Nandy, Milon
Composite Study Aid Publications, 1993
Buku Referensi
Jones, Steven, 1974- , Author
Cambridge University Press, 2012
eBooks
edited by G. Elgie Christ
Frederick Warne and Co, 1960
Buku Referensi