Fonte:
http://www.dgci.min-financas.pt/NR/rdonlyres/9FF0C4BE-87CD-4F6B-BD91-FCD3BE0CC101/0/IV-T1202004253-Recolha_lixos.pdf
http://www.dgci.min-financas.pt/NR/rdonlyres/796B54E6-880D-4D3F-9725-8E90B00D1074/0/IV_a100_2004043_telecomunicacoes.pdf
http://www.dgci.min-financas.pt/NR/rdonlyres/377075FC-6C16-4A14-992B-2FA1DD0FF083/0/IV-a200_2004034-gestao_prisional.pdf
http://www.dgci.min-financas.pt/NR/rdonlyres/4DFAAFA2-060D-4D84-910A-1F6270B76DE1/0/IV-T1210_2006421-Gasoleo.pdf
http://www.dgci.min-financas.pt/NR/rdonlyres/8F3DC66F-AE8C-4A7C-A273-B3B0F5889F48/0/IV-t1202006386-produtos_base_soja.pdf
