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Manoharan, K., Dissanayake, P., Pathirana, C., Deegahawature, D., & Silva, R. (2022). Labour-related Causes Controlling the Efficiency of Road Construction Operations in Sri Lanka: Engineers’ Standpoint. Advances in Technology, 2(4), 417–432. https://doi.org/10.31357/ait.v2i4.6072