Gaya APA
W.S, N, N, D.
(2019).
Smart Pocket Grammar
(
cet.2)
.
Yogyakarta:
Charissa Publisher.
Gaya MLA
W.S, Niswatin, N.H,, Dewi.
"Smart Pocket Grammar".
cet.2
Yogyakarta:
Charissa Publisher,
2019.
Buku.