1 | | A first course in differential equations : With modeling applications / Dennis G. Zill . - 10th ed. - Belmont, CA : Brooks/Cole, Cengage Learning, 2013. - xiii, 384, [49] pages : illustrations ; 28 cm Mã xếp giá: 515.353 BĐăng ký cá biệt: Lầu 2 KLF: 2000007476 |