Gaya APA

Field, M. (2002). Improving your written English: How to ensure your grammar, punctuation and spelling are up to scratch. . Kuala Lumpur: Golden Books Centre.

Gaya MLA

Field, Marion. "Improving your written English: How to ensure your grammar, punctuation and spelling are up to scratch.". Kuala Lumpur: Golden Books Centre, 2002. Buku.