"Responsibilities". The Governor General of Canada. Queen's Printer for Canada. Archived from the original on January 23, 2021. Retrieved October 13, 2019.
Forsey, Helen (October 1, 2010). "As David Johnson Enters Rideau Hall..."The Monitor. Ottawa: Canadian Centre for Policy Alternatives. Retrieved January 23, 2011.
"Responsibilities". The Governor General of Canada. Queen's Printer for Canada. Archived from the original on January 23, 2021. Retrieved October 13, 2019.