Bhattacharya, D. k. (1999). Production and operations management. Excel.
Dyfyniad Arddull ChicagoBhattacharya, Dipak kumar. Production and Operations Management. New delhi: Excel, 1999.
Dyfyniad MLABhattacharya, Dipak kumar. Production and Operations Management. Excel, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.