Hammersley, Martyn, author
Routledge, 1992
Buku Teks
Istifatun Zaka, author
Buku Bijak, 2022
Buku Teks
Hollander, Stanley C., author
Michigan State University , 1960
Buku Teks
Willis, James F., author
North West Publishing, 2002
Buku Teks
C. A. J. Coady
Blackwell Publishing, 2006
Buku Teks