Gaya APA
Umar, S, M.
(1991).
Struktur bahasa akit / Umar, said mahmud dkk.
.
Jakarta:
.
Gaya MLA
Umar, Said, Mahmud.
"Struktur bahasa akit / Umar, said mahmud dkk.".
Jakarta:
,
1991.
Textbook.