Gaya APA
M.A, A.
(1991).
Essential Enflish usage and grammar 2
(
j-2,c-1)
.
Surabaya:
Binarupa Aksara.
Gaya MLA
M.A, Alter.
"Essential Enflish usage and grammar 2".
j-2,c-1
Surabaya:
Binarupa Aksara,
1991.
400_Language.