Raychev, Todor Stojanov Methodology Estimating the Efficiency of the Services in Water Supply and Sanitation Sector under Concessioning in the Republic of Bulgaria,
, 2017, pp. 86 - 93, ISSN 1314-7390.
Raychev, Todor Stojanov .
Methodology Estimating the Efficiency of the Services in Water Supply and Sanitation Sector under Concessioning in the Republic of Bulgaria.
: , 2017, pp. 86 - 93, ISSN 1314-7390.
Raychev, Todor Stojanov (2017)
Methodology Estimating the Efficiency of the Services in Water Supply and Sanitation Sector under Concessioning in the Republic of Bulgaria,
: , pp. 86 - 93, ISSN 1314-7390
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