APA (7th ed.) Citation

DARNA, V. Cara Mudah Menguasai TOEFL. Puspa Swara.

Chicago Style (17th ed.) Citation

DARNA, Vincent. Cara Mudah Menguasai TOEFL. Puspa Swara.

MLA (8th ed.) Citation

DARNA, Vincent. Cara Mudah Menguasai TOEFL. Puspa Swara.

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