Gaya APA

Lofissa, S, P., Somantri, A, M, K. (2011). English is my world (cet.1). Westport, Conn.: DAR! Mizan.

Gaya MLA

Lofissa, Sabrina, Putri., Somantri, Ahmad, Mahdi,, Krisna. "English is my world". cet.1 Westport, Conn.: DAR! Mizan, 2011. Text.