26 marketing strategy – http://en.wikipedia.org/wiki/Marketing_strategy
27 advertising – http://en.wikipedia.org/wiki/Advertising
28 Small Business – http://en.wikipedia.org/wiki/Small_business
29 customer – https://smallbiztrends.com/2017/09/10-tips-building-customer-focused-business.html
31 Facebook – https://www.entrepreneur.com/article/253158
32 LinkedIn – https://blog.hootsuite.com/linkedin-for-business/
33 ConstantContact – https://blogs.constantcontact.com/small-business-marketing-resources/
34 Mailerlite – https://www.mailerlite.com/ultimate-guide-to-email-marketing
35 Survival Tips for Solopreneurs – https://www.inc.com/marla-tabaka/survival-tips-for-solopreneurs.html
36 Don’t Look Now, But Small Business Is On The Brink Of Something Big – http://www.businessinsider.com/us-small-business-recovery-2011-2
37 42 Ideas for Your 2021 Small Business Marketing Strategy – https://blog.hubspot.com/marketing/small-business-marketing-guide
38 Allocating Resources to Help Small Business Grow – https://www.fastcompany.com/1702810/allocating-resources-help-small-business-grow