Jelaskan Sumber asas dari Henry Parkes dalam bahasa melayu

Parkes, Henry. Fifty Years in the Making of Australian History (1892), memoir online

Parkes, Henry, and Annie T. Parkes. An Emigrant's Home Letters (1896) 164 pages  online edition

Parkes, Henry. Speeches on Various Occasions Connected with the Public Affairs of New South Wales (1876) 464 pages;  online edition

Parkes, Henry. The Federal Government of Australasia: Speeches.... (1890) 189 pages; online edition