Wortabet, John
Frederick Ungar Publishing, 1954
Buku Referensi
Steingass, F.
Gaurav Publishing House, 1986
Buku Referensi
Newman, Daniel
Routledge, 2007
Buku Referensi
Steingass, F.
Antarkarya, 1986
Buku Referensi
Steingass, F.
Antarkarya, 1986
Buku Referensi