The phrase "appropriate sources of" is correct and usable in written English.
It can be used when discussing the suitability or relevance of sources for a particular topic or purpose.
Example: "In order to support your argument, it is essential to reference appropriate sources of information."
Alternatives: "suitable sources of" or "relevant sources of".
Also, given that Barclays is withdrawing its sponsorship, will he be looking for more appropriate sources of income, such as Zoo Weekly magazine or the Dorchester?
We'll continue to build great products that help people enjoy the richness of the Internet, and we're confident that this allows us to identify appropriate sources of revenue.
BSA also provides contact information for sectional officers who head their teaching section and who may be able to steer you toward appropriate sources of information.
Then, project managers have the option to select the appropriate sources of input materials for the energy production of the project.
Additionally, appropriate sources of stem cells for regenerative dentistry are discussed with regard to differentiation capacity, accessibility and possible immunomodulatory properties.
In silico genomic analysis of biosynthesis pathways was preliminarily performed prior to experimental assays to determine (i) amino acids and vitamins necessary for improving the growth of C. jejuni strains, and (ii) the most appropriate sources of carbon, nitrogen and sulfur.
Although we need an appropriate source of income to pay for the costs of road building and repair, I believe that more toll roads are a mistake.
"We were gratified that voters saw us as important, and that they felt this was an appropriate source of funding," said Dr. Nancy McCallin, president of the Colorado Community College System.
But Cornwell is an even more appropriate source of Tory moderniser's inspiration as a Republican who fell out ("not a democracy so much as theocracy") with George Bush.
"I thought the idea of beautiful, alluring but ultimately powerful and dangerous things was an appropriate source of inspiration for women fighting breast cancer," she said.
"We found from our DNA studies that he is most closely related to a subspecies on islands farthest from his. "Perhaps they would be a more appropriate source of a mate".
