Dr.Mehran KoohgilaniABDULLAH ABDULAZIZ A ALKHORAIF2022-05-282022-05-2823716https://drepo.sdl.edu.sa/handle/20.500.14154/36274Investigating the contractual and sub contractual risks to establish a congruous contract management structure in the upstream oil and gas industry from a project management perspectiveThesis