| Therefore, the LFS is mainly used as a secondary source for adjustment of certain types of employment. |
| The Office will designate an internal specialist who will provide guidance on secondary source information to audit teams. |
| This documentation consists of brief excerpts from primary and secondary source documents, and texts from historians. |
| A secondary source of power shall be sufficient to replace the primary source of power for a continuous period of three days. |
| It is not normally acceptable to use a single, peer reviewed secondary source with no further supporting evidence. |
| How often do you check with a secondary source to try to validate whether or not a rumor is true? |