Becker, Gary S. (1994) Human Capital: A Theoretical and Empirical Analysis, with Special Reference to Education (3rd Edition). The University of Chicago Press, Chicago and New York. ISBN 978-0-226-04120-9

Burgel, J. C. and Beeston, A. F. L. and Johnstone, T. M. and Serjeant, R. B. and Smith, G. R. and Ashtiany, Julia and Latham, J. D. and Smith, G. Rex (1994) The Cambridge History of Arabic Literature: Arabic Literature to the End of the Umayyad Period. Cambridge University Press, Cambridge, New York. ISBN 978 -0 -521 -77160 -3

Dayan, Daniel and Katz, Elihu (1994) Media events: the live broadcasting of history. Harvard University Press, Cambridge, Massachusetts. ISBN 978-0674559561

Nunnally, Ira Bernstein (1994) Psychometric Theory 3rd (Third) edition. McGraw-Hill, New York, NY. ISBN 0-07-047849-x

Sapardi Djoko Damono, - (1994) Hujan Bulan Juni. PT. Grasindo, Jl. Palmerah Selatan 28, Jakarta 10270. ISBN 979-553-467-X