The phrase "a central source of" is correct and usable in written English.
It can be used to refer to a primary or main origin of information, resources, or influence in a particular context.
Example: "The university serves as a central source of research and innovation in the field of technology."
Alternatives: "a primary source of" or "a key provider of".
Income taxes became a central source of revenue for many popular, and unpopular, domestic programs.
The victim, Natalya Estemirova, 50, had become a central source of information on abuses in Chechnya, where a separatist war has given way to a brutal counterinsurgency campaign.
It was translated into English, German and at least three other languages, is still in print, and was a central source of the 2001 television movie "Uprising".
Not knowing what the North Koreans really think is a central source of the current instability on the peninsula at the moment".
Those who want to give can go to a central source of information -- libertyunites.org -- to find the names of groups providing direct help in New York, Pennsylvania and Virginia.
The United Nations predicts that, by 2100, there will be as many as ten billion people living on the planet, and half of them will rely on rice as a central source of nourishment.
"It really demonstrates that there is a central source [of protons]," Hofmann says.
According to Dreyer [17], the origin of a power-law allometric scaling exponent has been ascribed to the existence of a supply-distribution system with a central source and a distribution of sources.
A second central source of connectivity data comes from curated databases of the published literature.
The first step to achieve this goal was the installation of a central source code management system (SCM).
But of course, if one were to re-formulate the 'action trigger' account to include abstract-level triggers, as some have done [43], [52], we would be left with an exclusively central source of the MCE.
