The document discusses various sources of finance for companies. It categorizes sources as short term, medium term, and long term based on tenure. Short term sources include working capital finance from banks, trade credit, inter-corporate deposits, factoring, and commercial paper. Medium term sources include loans from banks and financial institutions, lease financing, hire purchase, external commercial borrowings, and bonds. Long term sources include shares, debentures, retained earnings, depository receipts, venture capital, and securitization. The document provides details on each type of financing source and their advantages and disadvantages.