1 | | Digital marketing excellence : planning, optimizing and integrating online marketing / Dave Chaffey , PR Smith . - Lần thứ 5. - New York: Routledge, 2017. - 660 tr.; 25 cm Số Đăng ký cá biệt: 00018312 |
2 | | Digital marketing excellence : Planning, optimizing and integrating online marketing / Dave Chaffey, PR Smith . - Sixth edition. - London ; New York : Routledge, 2023. - xxvi, 638 pages : Illustration ; 25 cm Số Đăng ký cá biệt: 00020349 |