APA (7th ed.) Citation

Yahya, S. (2011). Fun & Easy English. Cakrawala Budaya Indonesia.

Chicago Style (17th ed.) Citation

Yahya, Sutrisno. Fun & Easy English. Cakrawala Budaya Indonesia, 2011.

MLA (8th ed.) Citation

Yahya, Sutrisno. Fun & Easy English. Cakrawala Budaya Indonesia, 2011.

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