Gaya APA

Marsudi, J., Wahyutomo, M, S, A. (1990). GATEWAY 3 ENGLISH FOR COMMUNICATION . : Intensive English Course.

Gaya MLA

Marsudi, J.S.., Wahyutomo, Munir, Siradj, And. "GATEWAY 3 ENGLISH FOR COMMUNICATION". : Intensive English Course, 1990. Text Book Sistem Informasi.