Geyl, Pieter, 1887-1966, author
Yale University Press, 1955
Buku Teks
Benjamin, Jules R., author
St. Martin's Press, 1983
Buku Teks
Kochhar, S.K., author
Grasindo, 2008
Buku Teks
Timmins, Geoff, author
Sage, 2006
Buku Teks
Hill, C. P., author
Perpustakaan Perguruan Kem. P.P. & K., 1956
Buku Teks