Rogers, Karen. "Five Questions for Transaction Analysis." Small Business - Chron.com, 03 August, 2018, http://smallbusiness.chron.com/five-questions-transaction-analysis-77684.html.
Soll, Jacob. "Accounted For: The Origins of Modern Finance." The New Republic, October 16, 2012, https://newrepublic.com/article/108345/double-entry-venice-modern-finance-accounting-jane-gleeson-white.
"Source Documents." NetMBA: Accounting, 2002–2010. August 3, 2018, http://www.netmba.com/accounting/fin/process/source/.