Wijaya Karya Beton is one of the branches of PT Wijaya Karya company that has been established since march 11, 1997. It is as an expansion of PT Wijaya Karya in precast concrete industrial field. It was unstable in selling of the product. It could be seen that on January until December 2012, the sales volume was unstable and decreased. Based on observation, there were many factors that influen…
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