Beveridge, Charles E., author
Universe, 1998
Buku Teks
Hartman, Andrew, author
The University of Chicago Press, 2016
Buku Teks
Mowry, George E.
Hill and Wang, 1969
Buku Teks
Ahmad Fikri Hadi, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2009
UI - Skripsi (Open)
Mowry, George E.
Hill and Wang, 1968
Buku Teks