Nandakumar, K. (1973). Vyavasayamanagement Nutanapravanathakal. State Institute of Languages.
Dyfyniad Arddull ChicagoNandakumar, K. Vyavasayamanagement Nutanapravanathakal. Trivandrum: State Institute of Languages, 1973.
Dyfyniad MLANandakumar, K. Vyavasayamanagement Nutanapravanathakal. State Institute of Languages, 1973.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.