The phrase "ample sources" is correct and usable in written English.
It can be used when referring to a sufficient number of resources or references available on a particular topic.
Example: "The research paper was well-supported by ample sources, providing a comprehensive view of the subject matter."
Alternatives: "plenty of resources" or "abundant references".
But hydropower plants require access to ample sources of surface water.
So there are ample sources from which to spin a fabulous tale of sharp-angled girls making their way in a decade of excess.
While many businesses have been affected by tighter credit, the operators of multifamily homes still have ample sources of capital available from Fannie Mae and Freddie Mac, despite the recent government takeover of the two mortgage companies.
From the sky, the birds spy the verdant rectangle of the park amid the gray cityscape and gravitate toward the Ramble, with its ample sources of food and water.
But a combination of lower demand because of European economic weakness and ample sources of supply elsewhere have helped cushion the anticipated effects of both the planned embargo and Iran's threat to stop exporting oil to Europe well before the embargo starts.
Given the traffic on Web sites that post mug shots of people who've been arrested ("Mugged by a Mug Shot," Oct. 6), it's only a matter of time before other sites start posting other humiliating information about people — especially when considering the ample sources of information now available.
That has provided ample source material for the Simpson Desert dunes, and many of the normally dry lake beds, including all the large ones, are encrusted with salt.
China's high savings rate (more than 40% of GDP) provides an ample source of money for the government to tap.
Cement grouting materials have characteristics of high strength, durability, non-polluting, ample source, simple grouting equipment, and low costs, which have been widely used in various applications.
"Legacy Falls" may seem like a winning format for a reality series, but according to composer-lyricist James Burn, daytime dramas provided ample source material "ideally suited" for musical theater, particularly in a show intended as a satire.
John Bull remained an ample source of funds, and Bottomley boasted that although nominally bankrupt, "I never had a better time in my life plenty of money and everything else I want as well".
