Ragin, Charles C., author
University of California Press, 1987
Buku Teks
Azzahra, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2016
UI - Skripsi (Membership)
Demas Sabatino, author
2019
UI - Tesis (Membership)
Klingenberg, Joseph J.
Reinhold Publishing & Co., 1965
Buku Teks
Gallagher, Charles A.
McGraw-Hill International Book Company, 1980
Buku Teks