| 41. | The main source of income is agriculture farming and animal husbandry.
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| 42. | Agriculture is still the main source of income of the population.
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| 43. | In 1419 a river tax added a further source of income.
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| 44. | Tourism is also an important source of income to the area.
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| 45. | Such historical protected monuments have become a source of income ."
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| 46. | Source of income is determined based on the type of income.
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| 47. | The main source of income is from shop and store businesses.
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| 48. | This is the main source of income for these boat operators.
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| 49. | Since 1942 a second source of income has been coal mining.
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| 50. | Animal husbandry is another major source of income in the tribe.
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