Jayakumar, S., author
Malayan Law Jaurnal, 1971
Buku Teks
Soe, Myint, author
Singapore Insurance Training Centre, 1977
Buku Teks
Wan Ramli Wan Muhamad, author
Jabatan Kebudayaan dan Kesenian Negara, 2006
Buku Teks
general editor Michael Renshall
Butterworth, 1990
Buku Referensi
Keenan, Denis, author
Pearson-Longman, 2002
Buku Teks