Gaya APA

Inc., S., Spacek, P. (1993). Scholastic Guides : Putting It in Writting (Ed. 1). USA: Penerbit Scholastic Inc..

Gaya MLA

Inc., Scholastic., Spacek, Peter. "Scholastic Guides : Putting It in Writting". Ed. 1 USA: Penerbit Scholastic Inc., 1993. Text.