http://abacusdata.ca/wp-content/uploads/2018/03/Abacus-Release-Politics-March-2018.pdf
http://leger360.com/admin/upload/publi_pdf/RapportPolitiqueF%C3%A9d%C3%A9ralMars2018_FINAL.pdf
http://angusreid.org/wp-content/uploads/2018/03/2018.03.19_Federal_Scheer_Trudeau.pdf |
