George Routledge and Sons, 1969
Buku Referensi
Marder, Michael P, author
Wiley, 2010
Buku Teks
Jordan, Philip B., author
McGraw-Hill, 1969
Buku Referensi
Rose, Elizabeth, author
Reinhold Publishing, 1958
Buku Referensi
Isihara, A., author
Oxford University Press, 1991
Buku Teks