Bank, J. (2000). The essense of total quality management. Prentice-Hall of India.
Dyfyniad Arddull ChicagoBank, John. The Essense of Total Quality Management. New Delhi: Prentice-Hall of India, 2000.
Dyfyniad MLABank, John. The Essense of Total Quality Management. Prentice-Hall of India, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.