Gaya APA
KING, F., CREE, D, A.
(1976).
MODERN ENGLISH BUSINESS LETTERS
(
CET. 1)
.
HONGKONG:
LONGMAN.
Gaya MLA
KING, F.W.., CREE, D., ANN.
"MODERN ENGLISH BUSINESS LETTERS".
CET. 1
HONGKONG:
LONGMAN,
1976.
Prodi D3 Kesekretariatan.