edited by E. Hettmann
Elsevier , 1983
Buku Teks
edited by John A. Adamovics
Marcel Dekker, 1997
Buku Referensi
Bakhadir Rismetov, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2014
UI - Disertasi (Membership)
Gritter, Roy J., author
ITB Press, 1991
Buku Teks
Berna Elya, author
1999
UI - Tesis (Membership)