link resume marketing communication tools 1 makul komunikasi pemasaran

https://www.kliksaja.net/pengertian-hard-selling-dan-soft-selling-dunia-marketing/

http://www.jokosusilo.com/memadukan-teknik-marketing-soft-selling-dan-hard-selling-di-bisnis-internet-anda/

https://queenovanda.wordpress.com/2013/04/05/integrated-marketing-communication/

https://library.binus.ac.id/eColls/eThesisdoc/Bab2/2011-2-01662-MC%20Bab2001.pdf