APA (7e ed.) Bronvermelding

Raya, D. E. A. Concentration ratios, financial leverage and profitability: The case of selected Philippine corporations, 1997-2006. Philippine Management Review.

Chicago (17e ed.) Bronvermelding

Raya, Danilo Erwin A. "Concentration Ratios, Financial Leverage and Profitability: The Case of Selected Philippine Corporations, 1997-2006." Philippine Management Review .

MLA (9e ed.) Bronvermelding

Raya, Danilo Erwin A. "Concentration Ratios, Financial Leverage and Profitability: The Case of Selected Philippine Corporations, 1997-2006." Philippine Management Review, .