Tamil Nadu, a vast state with an immensely rich religious cultural heritage, is a key source.
Tourism is a key source of income for Tunisia, accounting for 6.5% of its gross domestic product.
"In Uganda, where the banana is a key source of nutrition, there is considerable vitamin A deficiency and also iron deficiency in diets," he said.
It is a key source of Ireland's failure to reach international human rights standards and of the state's failure to meet its obligations to vindicate women's human rights.
This hurts, because manufacturing, with its competitive pressures and its demand for technological innovation, is a key source of economic growth for developing countries.
Pakistan is a key source of support for the Taliban, providing arms, food, fuel and, not least, thousands of volunteers for its fighting forces.
Hungary is a key "source" location for women and girls being trafficked to countries where prostitution is legal, such as Switzerland, Germany, and the Netherlands.
Foreign investment is a key source of economic growth, so it was no surprise that a key theme of George Osborne's March Budget was how the UK was open for business.
Re "The Changing Face of Terror" (editorial, May 3): You assert that "Pakistan is a key source of support for the Taliban, providing arms, food, fuel and, not least, thousands of volunteers for its fighting forces".
This is a key source of greater investor confidence in the region.Because the Latin American banking industry is still relatively underdeveloped, international financial institutions are increasingly looking to expand their operations there.
The services available to trekkers and climbers will be better than that enjoyed by many ordinary people in Nepal, a country which suffers from widespread poverty and for which trekking and tourism is a key source of foreign revenues.
