Police station operations, 1986, Sprag guilty of treason, Argus, 3 November 1986

Police station operations, 1986, The making of a traitor, by Sarah Sussens, The Sunday Star, 9 November 1986

Police station operations, 1986, Sprag given 25, Sowetan, 7 November 1986

Police station operations, 1986, South African white arrested in blasts, by Alan Cowell, New York Times, 10 March 1986

Police station operations, 1986, Sprag gets 25 years, Argus, 6 November 1986

Police station operations, 1986, Judge: Abundantly clear Marion Sprag is guilty, Citizen, 4 November 1986

Letter to Petros Sipho Mkhize from his father in Macambini, KwaZulu-Natal

A two-page handwritten letter in isiZulu on green paper, headed with the address of Mathubesizwe Secondary School, Nyoni