This document discusses different sources of finance for businesses classified according to time period, ownership/control, and source of generation. Sources are classified as long-term, medium-term, or short-term depending on the time period for which funds are required. Sources also include owned capital like equity or retained earnings that are under the business's control, and borrowed capital from external sources like financial institutions or public debt. Internal sources of finance come from within the business like retained profits, while external sources come from outside the business like loans or share offerings. Choosing the right source of finance is important for business costs and feasibility.