Jacob Mankidy. (1989). Quality Circles Concept, Rationale and Methodology. Himalaya Publishing House.
Dyfyniad Arddull ChicagoJacob Mankidy. Quality Circles Concept, Rationale and Methodology. Bombay: Himalaya Publishing House, 1989.
Dyfyniad MLAJacob Mankidy. Quality Circles Concept, Rationale and Methodology. Himalaya Publishing House, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.