edited by G.M. Sheldriek, C. Kruger and R. Goddard
Clarendon Press, 1985
Buku Teks
Tackaberry, John, author
Sweet & Maxwell, 2003
Buku Teks
edited by Francis D'Souza, Karl M. Kadish
World Scientific Publishing, 2011
Buku Referensi
edited by Ulrich Ammon, Norbert Dittmar, Klaus J. Mattheier
Walter de Gruyter, 1988
Buku Referensi
editor, E.P. Wohlfarth
North-Holland, 1980
Buku Referensi