Erdi Rujikartawi, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2004
UI - Tesis Membership
Sumono Mustoffa
Yayasan Idayu, 1978
Buku Teks
Mohammad Shafil, author
Coriosita, 2004
Buku Teks
Mill, John Stuart
Yayasan Obor Indonesia, 1996
Buku Teks
Mill, John Stuart, author
Yayasan Obor Indonesia, 2005
Buku Teks