1. Essentials of business communication Guffey, Mary Ellen, Boston, MA : Cengage Learning, [2023] BUS490 BUS471 ENG213
2. Essentials of business communication Guffey, Mary Ellen, Australia : Cengage Learning, [2019] ENG212
3. The truth about the new rules of business writing Canavor, Natalie, 1942-, Upper Saddle River, N.J. : Pearson Education, [2010] ENG213
4. A guide to good business communication: how to write and speak English well in every business situation Bennie, Michael, Oxford : How To Books, 2009. ENG213
