"local source" is a valid phrase in English.
You can use it when referring to a source of information that is close to you, geographically or otherwise. For example, "I heard about it from a local source."
A local source has told Reuters that six foreign hostages and eight rebels were killed in the Algerian strike on the gas complex.
Reuters cited a local source as saying 180 Algerian workers had escaped.
A local source has told Reuters that 180 Algerian hostages have escaped.
This chapter provides a local source of information about analog signals and systems.
Using the output from SWIM and knowledge of local contributors, a local source landscape is painted.
On the other hand, there is obviously no local source of funding for public-sector agencies in Luhansk.
If additional heat is needed, there is an obvious local source – diverting thermal flows from the Northern Line.
Each site will serve as an intensely local source for political articles, speculation and scandal, Mr. Kushner said.
The subject is on people's minds these days because it offers an available and renewable local source of energy.
The problem of vibration propagation from a local source of excitation is considered.
Most of the store's fruits and vegetables come from a local source, too, J. P. Jarjura and Sons, in Waterbury.
