edited by E.C. Subbarao, W.E. Wallace
Academic Press, 1980
Buku Teks
Jacques Lucas ... [and four others]
Elsevier, 2015
Buku Teks
Zhang, Jack, author
Springer, 2016
Buku Teks
Iftironi Haritsah, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2018
UI - Tesis Membership
Gschneidner, Karl A.
Elsiver Science, 1997
Buku Referensi