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2. Coetzee, N.F., Van Wijk, A.J., and Maree, J.H., 1989. Impact deflection measurements. Proceedings of the 5th conference on asphalt pavements in southern Africa, Swaziland.
3. Department of Transport and Main Roads (DTMR), 2012. Pavement rehabilitation manual. Brisbane: Technical Reference Centre, Engineering and Technology Division.
4. FHWA, 2012. A simplified techniques for evaluation and interpretation of pavement deflections for network-level analysis. Publication no. FHWA-HRT-12-023. McLean, VA: United States Department of Transportation, Federal Highway Administration, Turner Fairbank Highway Research Center.