E.J. Brill, 1978
Buku Referensi
Marvin C. Alkin, editor-in-chief
MacMillan Library Reference USA, 1992
Buku Referensi
E.J. Brill, 1986
Buku Referensi
edited by Hyder Edward Rollins
J.B. Lippincott, 1944
Buku Teks
Krishnan, Anandan, author
LexisNexis, 2008
Buku Referensi