Tonne, H. A. (1965). Methods of teaching business subjects (3rd. ed.). McGraw-Hill.
Chicago Stili AlıntıTonne, Herbert A. Methods of Teaching Business Subjects. 3rd. ed. McGraw-Hill, 1965.
MLA AlıntıTonne, Herbert A. Methods of Teaching Business Subjects. 3rd. ed. McGraw-Hill, 1965.
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