Lonsdale, Richard E., author
John Wiley & Sons, 1979
Buku Teks
Artikel Jurnal
Mountjoy, Alan B., author
Hutchinson University Library, 1963
Buku Teks
Mountjoy, Alan B., author
Hutchinson University Library, 1971
Buku Teks
Baer, Werner, author
Richard D. Irwin, 1965
Buku Teks