Sobolev, Leonid, author
Moscow : Progress Publishers, 1965
Buku Teks
Sobolev, Leonid, author
Progress Publishers, 1965
Buku Teks
Artikel Jurnal
Rankin, William.
Bandung Mizan 2000,
Buku Teks
Vini Mariyane Rosya, author
Program Pascasarjana Universitas Indonesia, 2014
UI - Tesis (Membership)