15 Methods For Testing Your Assumptions [Research Guide] // OpinionX — Free Stack Ranking Surveys

15 Methods For Testing Your Assumptions [Research Guide] // OpinionX — Free Stack Ranking Surveys

Daniel Kyneopinionx.co
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Testing Business Ideas: A Field Guide for Rapid Experimentation (Strategyzer)

David J. Bland

amazon.com
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Rob Fitzpatrick The Mom Test: How to talk to customers & learn if your business is a good idea when everyone is lying to you