Kenyon, John Samuel
Merriam-Webster ; G. & C. Merriam Co., 1953
Buku Referensi
Jones, Daniel
Cambridge University Press, 1992
Buku Referensi
Jones, Daniel
Cambridge University Press, 2003
Buku Teks
Lee, Seung Hun
Phuren Ssasang, 2009
Buku Referensi
Peter Salim
Modern English Press, 1991
Buku Referensi