Gaya APA
ROBERT, O., ETTY, S.
([s.a.]).
Focus on English Idioms
.
Tangerang Selatan:
Karisma Publishing Group.
Gaya MLA
ROBERT, Oeban., ETTY, Soelistyowati.
"Focus on English Idioms".
Tangerang Selatan:
Karisma Publishing Group,
[s.a.].
Text.