"external personnel" is correct and usable in written English.
You can use it when referring to staff who are considered external to the company or organization, such as contractors, freelancers, temp workers, etc. For example: "We hired external personnel to help handle our increased workload this season."
This paper studies the application of the external personnel marketing in selected Slovak mechanical engineering company.
Concerning findings and results, the selected company uses external personnel marketing principles in external hiring and practices employer branding within the geographical region of its location.
The primary objective of the paper is to analyze and describe how and to what extent theoretical principles of external personnel marketing are applied in a selected Slovak mechanical engineering company.
We recommend more intensive use of public relations tools towards the inhabitants of the region where the selected company operates and recommend following the use of external personnel marketing principles in external hiring.
Build and direct a cohesive team of internal and external personnel to ensure eSTORE enhancements and success.
The same goes for the Financial Oversight and Management Board (FOMB), the federally appointed board which since its August 2016 inception has awarded numerous multi-million dollar contracts to external personnel.
Planned cuts for 2013 include reductions in external service personnel, the report claims.
As a result, mobile support for internal and external maintenance personnel would be realized, so as to improve efficiency and flexibility for the on-site and off-site maintenance [11].
It involved no additional questions, tests, or interventions for patients, had no effect on their medical care, and did not involve any external research personnel.
Uniquely, the school-based combined nutritional-physical activity intervention was incorporated into the existing pre-school core curriculum and delivered mainly by the pre-school staff, and not by external professional personnel.
For this reason, clinical trials often restrict the participation of GPs and their staff to the identification and referral of possible patients, leaving the eligibility review and enrolment steps up to external study personnel [ 10- 16].
