The phrase "a primary resource for" is correct and usable in written English.
It can be used when referring to a main source of information or material for a specific purpose or topic.
Example: "The library serves as a primary resource for students conducting research on historical events."
Alternatives: "a key source for" or "a main reference for".
With its Taíno gallery, the museum instantly becomes a primary resource for art historians and anthropologists.
The Internet has become a primary resource for classical music: the music itself as well as information about it.
It is not only a primary resource for locating and acquiring new pieces but also a way to discern the latest design trends.
With its permanent Taino gallery, it instantly becomes a primary resource for art historians and anthropologists, and a necessary stop for anyone who wants to fully understand what "American history" means.
It is a primary resource for training in nearly every American ballet company, not to mention it puts ticket-purchasing people in the seats every year, even in populations smaller than New York's, so it provides jobs for people working in the arts, and we know how precious few of those jobs still exist.
Given the rise of real estate sites like Trulia and Redfin, it's clear that the internet has become a primary resource for prospective home shoppers.
Marketers put customer relationship management (CRM) systems on a pedestal as a primary resource to feed leads for sales.
Slices for Twitter (iPhone, iPod touch $4.99 Android free) From reading commentary during live news and sporting events, to sharing information about public transportation during Hurricane Sandy, to finding out what your friends are up to this weekend, Twitter in 2012 emerged as a (if not the) primary resource for real-time news and information for mainstream users.
But the Sterling experience includes an acidic animus, all for a broadcaster who does not even appear on the primary resource for fans following the team: television.
And the couples themselves have begun to connect online, largely through a Web site called Cousincouples.com, which bills itself as "the world's primary resource for romantic relationships among cousins," and is trying to build support for overturning laws prohibiting cousin marriage.
