Lie Hendri Lukita
Universitas Indonesia, 2008
UI - Skripsi Open
Universitas Indonesia, 2006
UI - Skripsi Membership
Universitas Indonesia, 2006
UI - Skripsi Membership
Wilansky, Albert
McGraw-Hill, 1978
Buku Teks SO
Grothendieck, A.
Gordon and Breach, Science Publishers, 1975
Buku Teks SO