na INLIS000000000066720 20211125021134 0010-1121000657 ta 211125 g 0 ind 978-602-04-9913-0 004.6 004.6 JEF m Jefferly Helianthusonfri Membangun Bisnis Online dengan Email Marketing / Jefferly Helianthusonfri Cet.1 Jakarta. : PT Elex Media Komputindo, 2019 176 hlm. : ilust. ; 21 cm. E-MAIL