Lewis, N. D. C. (2004). Operational risk with Excel and VBA: Applied statistical methods for risk management. Wiley.
استشهاد بنمط شيكاغوLewis, Nigel Da Costa. Operational Risk With Excel and VBA: Applied Statistical Methods for Risk Management. Wiley, 2004.
MLA استشهادLewis, Nigel Da Costa. Operational Risk With Excel and VBA: Applied Statistical Methods for Risk Management. Wiley, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.