Gaya APA

Helo, P., Dwight, R. (2009). Performance measurement: roles and challenges (Vol. 109 No. 5, 2009). Australia: Emerald.

Gaya MLA

Helo, Petri., Dwight, Richard. "Performance measurement: roles and challenges". Vol. 109 No. 5, 2009 Australia: Emerald, 2009. Article.