Aurelius, Marcus
PT Mizan Publika, 2022
Buku Teks SO
Gorman, Michael
[American Library association;American Library association, American Library association], 2005
eBooks
De Mello, Anthony
Gujarat Sahitya Prakash, 2004
Buku Teks SO
Suparman Khan
Universitas Indonesia, 1996
UI - Tesis Membership
Swasti Wurjantoro
Universitas Indonesia, 2001
UI - Skripsi Membership