Gaya APA
PURBA, Y, S. (2019).
English Vocabulary Booster: toefl toeic ielts gre & daily conversation (1).
Yogyakarta:
Outre.
Gaya MLA
PURBA, Y., SANAHA.
"English Vocabulary Booster: toefl toeic ielts gre & daily conversation".
1
Yogyakarta:
Outre,
2019.
Text.