Gaya APA

Keat, P, G., K.Y., Y, ,, P. (2013). Managerial Economics : Economic Tools For Today's Dercision Makers (Global Edition). England: pearson.

Gaya MLA

Keat, Paul, G.., K.Y., Young, ,, Philip. "Managerial Economics : Economic Tools For Today's Dercision Makers". Global Edition England: pearson, 2013. Text.