Source Documents:Source documents are the original records of a business transaction, such as receipts, invoices, checks, and purchase orders, which provide the foundation for recording accounting information.
Cash Receipts:Cash receipts are written acknowledgments that document the receipt of cash payments, typically issued to customers as proof of payment.
Sales Invoices: Sales invoices are documents that record the sale of goods or services, including the details of the transaction, such as the items sold, quantities, prices, and the total amount due.