Gaya APA
Private Secondary School. (2014).
United States of America:
Nelnet Company.
Gaya Chicago
Private Secondary School.
.
United States of America:
Nelnet Company,
2014.
Teks.
Gaya MLA
Private Secondary School.
.
United States of America:
Nelnet Company,
2014.
Teks.
Gaya Turabian
Private Secondary School.
United States of America:
Nelnet Company,
2014.
Teks.