Enlace original:
https://wedocs.unep.org//handle/20.500.11822/26717
United Nations Environment Programme
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[Les programmes nationaux de certification pour Les techniciens de maintenance en froid et cLimatisation, НАЦИОНАЛЬНЫЕ ПРОЦЕДУРЫ СЕРТИФИКАЦИИ ТЕХНИКОВ ПО ОБСЛУЖИВАНИЮ ХОЛОДИЛЬНОГО И КОНДИЦИОНЕРНОГО ОБОРУДОВАНИЯ]
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[National Certification Schemes for Refrigeration and Air-conditioning Service Technicians: Examples of Strategies and Requirements for their Establishment and Operation]
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National Certification Schemes for Refrigeration and Air-conditioning Service Technicians: Examples of Strategies and Requirements for their Establishment and Operation
