Wittgenstein. Zettel, Eds., Anscombe and von Wright, Trans., Anscombe, Oxford: Basil Blackwell, 1967.
Wittgenstein. The Blue and Brown Books, New York: Basil Blackwell, 1958.
Wittgenstein. Remarks on the Foundations of Mathematics [1937-44], Eds., G.H. von Wright, R. Rhees and G.E.M. Anscombe, Tran., .G.E.M. Anscombe, rev. edn, Oxford: Blackwell, 1978: 1st edn., 1967.
Wittgenstein. Philosophical Grammar, Ed., R. Rhees, Tran., Anthony Kenny, University of California Press, Berkeley, 1974.
Wittgenstein. On Certainty, Oxford: Basil Blackwell, 1969.
Wittgenstein. Notebooks 1914-1916, Ed., G.H. von Wright and G.E.M. Anscombe, Oxford: Basil Blackwell, 1961.
Wittgenstein, L. Tractatus Logico-Philosophicus. Trans., C.K. Ogden, Introduction by B..Russell, London, Boston and Henley: Routledg&Kegan Paul, Ltd, 1933.
Stickney, J. "Training and Mastery of Techniques in Wittgenstein's Later Philosophy: A response to Michael Luntley", Educational Philosophy and Theory, Vol. 40.5, 2008.
Salmon, N. Reference and Essence, Prometheus Books, 2004.
Putnam, H. Principles of Mathematics, New York: W.W. Norton & Company, 1996.
Putnam, H. Logic and Knowledge, Ed., R. Marsh, N.Y. Caprico, Books, 1968.
Piaget, J. Child's Conception of the World, London: Routledge & Kegan Paul, 1951,
McCulloch, G. The Game of the Name: Introducing Logic, Language, and Mind, Oxford: Clarendon Press, 1989.
Mart , C. "Sense and Reference", Routledge Encyclopedia of Philosophy 8, 1998.
Malcolm, N. Ludwig Wittgenstein: A Memorr, London, Oxford University. Press, 1958.
Malcolm, N. "Wittgenstein: The Relation of Language to Instinctive Behaviour", LUDWIG WITTGENSTEIN, in Critical Assenssments, vol. 2, Ed., Sturt Shanker, Croom Helm, 1986.
Luntley, M. "Learning, Empowerment and Judgement", Educational Philosophy and Theory, 2007.
Kripke, S. Naming and Necessity, Harvard University Press, 1980.
Klemke, E.D. "The Ontology of Wittgenstein's Tractatus"m ㄸd. E. D. Klemke, Essays on Wittgenstein, Urbana: University of Illinois Press, 1971.
Fogelin, R.J. Wittgenstein, Edited by Honderich, Boston, London and Henly: Routledg & Paul, 1976.
Fogelin, R.J. Philosophical Writing of Gottlob Frege, Trans., Peter Geach, Maxblack, London: Oxford, 1970.
Fodor, J.A. The Language of Thought, Hassocks, Sussex: Havester Press, 1975.
Evans, G. "The Causal Theory of Names", Collected Papers, Oxford: Clarendon Press, 1985.
Devitt, M. "Reference", Routledge Encyclopedia of Philosophy 8, 1998.
Copi, I.M. "Object Properties and Relations in the Tractatus", Essays on Wittgenstein's Tractatus, Eds. I. M. Copi & R. W. Bristol: Thoemmes Press, 1993.
Chomsky. N. Knowledge of Language, New York: Praeger, 1996.
Chomsky. N. Aspects of the Theory of Syntax, Cambridge, Mass: M. I. T. Press, 1965.
Bogen, J. Wittgenstein's Philosophy of Language, London: RKP, 1972.
Bloomfield, L. Language, London: George & Unwin, 1935.
Black, M. "Wittgenstein's Language-games", Ludwig Wittgenstein, Vol. Ⅱ. London: Croom Helm, 1986.
Bichsel, P. Kindergschichten-Ein Tisch ist ein Tisch, Darmstadt / Neuwied, 1989.
Baker, G.P․Hacker, P.M.S., Wittgenstein: Understanding and Meaning, Chicago, The University of Chicago Press, 1980.
Ayer, A.J. "Can There Be a Private Language?", WITTGENSTEIN, Ed., Honderich, Boston, London and Henly: Routledg & Paul, 1976.
Anscombe, G.E.M. An Introduction to Wittgenstein's Tractatus, Philadelphia: University of Pensylvania Press, 1871.