Catholic Press, 1953
Buku Referensi
Steingass, F., author
Antarkarya, 1986
Buku Referensi
Steingass, F., author
Gaurav Publishing House, 1986
Buku Referensi
edited by N.S. Doniach
Oxford University Press, 1992
Buku Referensi
edited by N. S. Doniach
Clarendon Press; Oxford University Press, 1972
Buku Referensi