edited by David L. Sills
Macmillan and The Free Press, 1968
Buku Referensi
editor, Paul Edwards
MacMilan, 1972
Buku Referensi
William Bright, editor-in-chief
Oxford University Press, 1992
Buku Referensi
William Bright, editor-in-chief
Oxford University Press, 1992
Buku Referensi
edited by A.S. Bhamhra, A.K. Chaudhary
Anmol Publications PVT, 1998
Buku Referensi