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Benhua Xu , 2013. Constructing and Empirical Research on Producer Services Development Evaluation System Based on Principal Component Analysis. Journal of Applied Sciences, 13: 3453-3458.
DOI: 10.3923/jas.2013.3453.3458
URL: https://scialert.net/abstract/?doi=jas.2013.3453.3458
DOI: 10.3923/jas.2013.3453.3458
URL: https://scialert.net/abstract/?doi=jas.2013.3453.3458