Time Asia, 2011
Majalah, Jurnal, Buletin
Allende, Isabel
Harper Collins Publishers, 1999
Buku Teks
Linda Djalil
Kakilangit Kencana, 2012
Buku Teks SO
Huetinck, Linda
Neb Cliffs Notes, Inc, 1994
Buku Teks SO
edited by Richard E. Mulcahy
Holt, Rinehart and Winston, 1967
Buku Teks SO