Lock, D. (1995). Hand book of project management/2ed (2nd ed.). Jaico.
Dyfyniad Arddull ChicagoLock, Dennis. Hand Book of Project Management/2ed. 2nd ed. Bombay: Jaico, 1995.
Dyfyniad MLALock, Dennis. Hand Book of Project Management/2ed. 2nd ed. Jaico, 1995.
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