Linder, Conrad B.2019-05-282019-05-281964Linder, C.B. (1963/1964). Opening address [to the National Conference on Teaching Machines and Programmed Instruction]. Symposium: A Journal of Education for Southern Africa, pp. 7-9.https://hdl.handle.net/10539/27259enUniversity of the WitwatersrandNational Conference on Teaching Machines and Programmed instruction (1st : 1963 : Johannesburg, South Africa)Teaching machines – 1964Language laboratories – South Africa – 1964Opening address [to the National Conference on Teaching Machines and Programmed Instruction]Article