Freund, John E., author
Pearson Prentice Hall, 2007
Buku Teks
Bowley, Arthur
Macdonald and Evans, 1951
Buku Teks
Hoel, Paul Gerhard, 1905-, author
John Wiley and Sons, 1962
Buku Teks
Ullman, Neil R., author
John Wiley and Sons, 1978
Buku Teks
Ullman, Neil R., author
John Wiley and Sons, 1978
Buku Teks