1
Published: Okayama : Okayama Buraku-Kaiho Kenkyusho, 1986
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2
3
Published: Köln : Rom e.V, 1993
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4
Published: Osaka : Kaiho Shuppansha
Serial
5
Published: Osaka : Yubunsha, 2006
Book
6
Published: Welwyn Garden City : International Youth Hostel Federation, 1984
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7
Book
8
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9
10
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11
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12
Published: Düsseldorf : Bertelsmann Univ.-Verl, 1973
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13
14
15
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16
17
Published: New York : East Asian Institute, Columbia University, New York, 1967
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18
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19
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20
Published: [Tokyo] : Heiwa Bunka, 1998
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