The Referral Engine

The small business guru behind Duct Tape Marketing shares his most valuable lesson: how to get your customers to do your best marketing for you. The power of glitzy advertising and elaborate marketing campaigns is on the wane; word- of-mouth...

Price history

▲55.62%
Nov 20, 2022
€13.66
▼-18.2%
Nov 14, 2022
€8.78
▼-26.68%
Oct 31, 2022
€10.73
▲7.15%
Oct 17, 2022
€14.63
▲40.04%
Oct 3, 2022
€13.66
▼-33.36%
Sep 14, 2022
€9.75
▲36.4%
Sep 7, 2022
€14.63
▼-26.68%
Aug 18, 2022
€10.73
▲25.02%
Aug 2, 2022
€14.63
▲9.1%
Jul 11, 2022
€11.70

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