Fonte:
http://www.dgci.min-financas.pt/NR/rdonlyres/01141E21-77D2-4A7E-8B8D-D0B2DB9E4591/0/L121_2007635-Aluguer_andaimes.pdf
http://www.dgci.min-financas.pt/NR/rdonlyres/1F09963F-A56B-4D29-8B44-250CE38A3626/0/A100_2007269-Instituicoes_religiosas.pdf
http://www.dgci.min-financas.pt/NR/rdonlyres/50547144-835E-4B7A-AD9D-9799FB8FCD4C/0/F061_2007228-Empreitadas-subemp.pdf
http://www.dgci.min-financas.pt/NR/rdonlyres/245A91FE-6A48-4816-8E92-23EA35FA97FC/0/A200_2006006-Drenagem_aguas.pdf
http://www.dgci.min-financas.pt/NR/rdonlyres/E75C785D-AF3B-4A12-9EAF-24C4E21C9AE9/0/A200_2007028-Autarquias.pdf
