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1901
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1902
A study on tax administration and compliance in the Philippines executive summary.
Argitaratua 1986Liburua -
1903
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1904
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1905
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1906
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1907
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1908
Comparative study of the provisions of the 1935, 1973 and the draft 1986 constitutions.
Argitaratua 1986Liburua -
1909
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1910