JR, F. A. (1972). SCHAUM'SM OUTLINE OF THEORY AND PROBLEMS OF DIFFERENTIAL EQUATIONS. MaGraw-Hill.
Chicago-viite (17. p.)JR, FRANK AYRES. SCHAUM'SM OUTLINE OF THEORY AND PROBLEMS OF DIFFERENTIAL EQUATIONS. Singapore: MaGraw-Hill, 1972.
MLA-viite (9. p.)JR, FRANK AYRES. SCHAUM'SM OUTLINE OF THEORY AND PROBLEMS OF DIFFERENTIAL EQUATIONS. MaGraw-Hill, 1972.
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