Hartkemeler, Harry P., author
Dickenson Publishing, 1868
Buku Teks
Anderson, T.W. (Theodore Wilbur), author
John Wiley & Sons, 1971
Buku Teks
Charles W. Eliot, edited
P. F. Collier & Son Corporation, 1959
Buku Referensi
IAEA, 1992
Buku Referensi
Sakhnovich, Lev A., author
Springer, 2012
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