Darwin, Charles, author
Penguin Books, 1985
Buku Teks
Darwin, Charles, author
The Modern Library , [date of publication not identified]
Buku Teks
Rakhmita Akhsayanty, author
2010
UI - Tesis (Membership)
Lukmanul Hakim, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2019
UI - Tesis (Membership)
Desy Mutia Ali, author
2017
UI - Makalah dan Kertas Kerja