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Piyapong Jiwattanakulpaisarn. 2008. The impact of transport infrastructure investment on regional employment : an empirical investigation. , University of London;
Piyapong Jiwattanakulpaisarn. (2008) The impact of transport infrastructure investment on regional employment : an empirical investigation . University of London/London.
Piyapong Jiwattanakulpaisarn. The impact of transport infrastructure investment on regional employment : an empirical investigation. . London:University of London, 2008.
Piyapong Jiwattanakulpaisarn. (2008) The impact of transport infrastructure investment on regional employment : an empirical investigation . University of London/London.