APA (7th ed.) Citation

ZAMALUDDIN. Increasing Your Vocabulary. Libera Indonesi.

Chicago Style (17th ed.) Citation

ZAMALUDDIN. Increasing Your Vocabulary. Libera Indonesi.

MLA (8th ed.) Citation

ZAMALUDDIN. Increasing Your Vocabulary. Libera Indonesi.

Warning: These citations may not always be 100% accurate.