Zill, D. G. (2009). A First Course in Differential Equations: With modeling applications (9th ed.). Brooks/Cole.
Chicago Style (17. basım) AtıfZill, Dennis G. A First Course in Differential Equations: With Modeling Applications. 9th ed. Pacific Grove: Brooks/Cole, 2009.
MLA (9th ed.) AtıfZill, Dennis G. A First Course in Differential Equations: With Modeling Applications. 9th ed. Brooks/Cole, 2009.
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