Gaya APA
Khalid, K, M. et al (2004).
Di hadapan Umar: novel memoar Khulafaur Rasyidin .
Yogyakarta:
Mitra Pustaka\\.
Gaya MLA
Khalid, Khalid, Muhammad. et al.
"Di hadapan Umar: novel memoar Khulafaur Rasyidin".
Yogyakarta:
Mitra Pustaka\\,
2004.
Text.