Blais, S. P. Business Analysis. Wiley.
Dyfyniad Arddull ChicagoBlais, Stavan P. Business Analysis. Wiley.
Dyfyniad MLABlais, Stavan P. Business Analysis. Wiley.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.
Blais, S. P. Business Analysis. Wiley.
Dyfyniad Arddull ChicagoBlais, Stavan P. Business Analysis. Wiley.
Dyfyniad MLABlais, Stavan P. Business Analysis. Wiley.