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