Which of the following is not a source of fund for sole-proprietorship?

Government bonds are not a source of funds for sole-proprietorship. This is because government bonds are a form of investment offered by the government, where investors lend money to the government and earn interest on it. Sole-proprietorship is a form of business owned and managed by an individual, and government bonds do not provide funds to start or run a sole-proprietorship business. On the other hand, personal savings, borrowing from friends and relatives, and borrowing from financial institutions are all common sources of funds for sole-proprietorship.