Blumel, Reinhold, author
Jones and bartlett publishers, 2011
Buku Teks
Trigg, George L.
D. van Nostrand Company, Inc., 1964
Buku Teks
Pauling, Linus, author
McGraw-Hill, 1935
Buku Teks
Smith, Henrik
World Scientific, 1991
Buku Teks
Fock, V.A.
Mir Publishers, 1978
Buku Teks