Tolong jelaskan mengenai Sumber sekunder dari Thomas Ashe

Boyce, D.G., Nationalism in Ireland (London 3rd ed. 1995)

Hayes-McCoy, G.A., 'A Military History of the 1916 Rising', in K.B.Nowlan (ed.), The Making of 1916. Studies in the History of the Rising (Dublin 1969)

Martin, F.X., (ed.), Leaders and Men of the Easter Rising: Dublin 1916 (London 1967)

Townshend, C, 'The Irish Republican Army and the Development of Guerilla Warfare 1916-21', English Historical Review 94 (1979), p. 318-45.

Townshend, C, 'The Suppression of the Easter Rising', Bullan, I(I)(1994), p. 27-47.