University Brunei Darussalam Library, 2006
Buku Referensi
Library Association of Australia, 1993
Majalah, Jurnal, Buletin
National Library of Australia,
Majalah, Jurnal, Buletin
Sagung Seto, 2020
Buku Teks
Joiner, Ida Arlene, author
Elsevier, 2018
Buku Teks