Web Reference
https://hbr.org/2013/07/use-customer-cash-to-finance-your-start-up
http://www.foxbusiness.com/features/2012/06/13/how-to-finance-your-startup-withoutloans.html
https://www.forbes.com/sites/samanthaharrington/2016/05/23/crowdfunding-yourstartup/#651ec9963493
https://www.virginstartup.org/how-to/how-should-you-crowdfund-your-startup
http://yecommunity.com/en/blog/fundraising-is-a-work-of-art
https://www.pnnl.gov/edo/media/angel_investing_oct2004.ppt
http://fundersandfounders.com/how-funding-works-splitting-equity/
https://techcrunch.com/2017/02/11/2017-the-year-your-startup-gets-funded/