Gaya APA

Christina, M. (2010). The essentials of good communication skills to assist the customer service of marketing department at taman rekreasi sengkaling Malang (CD) . Malang, Jatim: UNMER.

Gaya MLA

Christina, Maria. "The essentials of good communication skills to assist the customer service of marketing department at taman rekreasi sengkaling Malang (CD)". Malang, Jatim: UNMER, 2010. CD-ROM.