Perelman, Charles
s.n., 1999
Buku Teks
BenoƮt, Hubert
International Specialized Book, 1955
Buku Teks
Trofimenko, Genrikh
Progress Publishers, 1986
Buku Teks
Haines, Charles Grove
Russell and Russell, 1959
Buku Teks
Dayal, Har
Motilala Banarsidass, 1932
Buku Teks