Gaya APA
Richey, R. (2011).
English for Banking & Finance _Vocational English Course Book 1 (1).
New York:
Pearson Longman.
Gaya MLA
Richey, Rosmary.
"English for Banking & Finance _Vocational English Course Book 1".
1
New York:
Pearson Longman,
2011.
Buku.