Sobolev, Leonid, author
Moscow : Progress Publishers, 1965
Buku Teks
Sobolev, Leonid, author
Progress Publishers, 1965
Buku Teks
Allen, Frederick Lewis
Bantam Books, 1961
Buku Teks
West, Morris, author
Coronet Books, 1957
Buku Teks
Sugiharto, author
2009
UI - Tesis (Open)