| The Internet is growing as a secondary source for election news, a survey made public yesterday says. |
| A secondary source of power shall be sufficient to replace the primary source of power for a continuous period of three days. |
| How often do you check with a secondary source to try to validate whether or not a rumor is true? |
| They fed Cairo's organic waste to the animals, whose meat provided a good secondary source of income. |
| This documentation consists of brief excerpts from primary and secondary source documents, and texts from historians. |
| What makes an object a primary source or a secondary source often depends on how you use it. |
