https://carmelcacopardo.wordpress.com/2008/03/26/dik-il-bozza/ https://carmelcacopardo.wordpress.com/2008/06/22/l-mlp-u-l-proposti-tal-ad-dwar-is-%e2%80%9csurcharge%e2%80%9d/ https://carmelcacopardo.wordpress.com/2008/06/26/revizjoni-tas-surcharge/ https://carmelcacopardo.wordpress.com/2008/07/02/inharsu-l-ambjent-ghax-hekk-tajjeb-u-ghax-jaqblilna/
Greening the Surcharge