Gaya APA

Stubbs's, B, &. (1990). Practical Guide to Writing with Additional Readings (Cet.1). USA: HarperCollinsPubliher.

Gaya MLA

Stubbs's, Barnet, &. "Practical Guide to Writing with Additional Readings". Cet.1 USA: HarperCollinsPubliher, 1990. Textbook.