Katz, Y. J. (1995). Computers in education. Pedagogical and psychological implications ([1st ed.].). Bulgarian Academy of Sciences.
Citace podle Chicago (17th ed.)Katz, Yaacov J. Computers in Education. Pedagogical and Psychological Implications. [1st ed.]. Sofia: Bulgarian Academy of Sciences, 1995.
Citace podle MLA (9th ed.)Katz, Yaacov J. Computers in Education. Pedagogical and Psychological Implications. [1st ed.]. Bulgarian Academy of Sciences, 1995.
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