edited by Penny Kaganoff and Susan Spano
Harcourt Brace & Company, 1997
Buku Teks
Lee, Kyun-young, author
Jimoondang Publishing Company, 2001
Buku Teks
Sheldon, Sidney, author
Book Club Associates, 1973
Buku Teks
Datin Seri Shuryani Datuk Shuaib, author
Yayasan Semporna, 2011
Buku Referensi
Pople, Maureen
St.Lucia:University of Queenssland, 1986
Buku Teks