Sobolev, Leonid
Progress Publishers, 1965
Buku Teks SO
Maund, Alfred
University of Illinois Press, 1999
Buku Teks SO
Allen, Frederick Lewis
Bantam Books, 1961
Buku Teks
Palmer, Vance
University of Queensland Press, 1973
Buku Teks SO
West, Morris
Coronet Books, 1957
Buku Teks SO