Warin, Cassandra
[publisher not identified], {s.a.]
Buku Referensi
World Express Mapping Sdn. Bhd, [date of publication not identified]
Buku Referensi
Nasution, Khoo Salma
Marshall Cavendish Editions, 2009
Buku Referensi
Warin, Cassandra
MPH Group Publishing Sdn Bhd, 2003
Buku Teks
Tan, Cecilia
Marshall Cavendish, 2009
Buku Referensi