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1by Martin, JacquesOther Authors: “...Decroly, Claude...”
Published 1969
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Doctoral Thesis -
2by Yunus, MuhammadOther Authors: “...Decroly, Claude...”
Published 1961
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Doctoral Thesis -
3
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4by Ghodsi, MehdiOther Authors: “...Decroly, Claude...”
Published 1960
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5by Abd-El-Wahed, Anwar MahmoudOther Authors: “...Decroly, Claude...”
Published 1954
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Doctoral Thesis -
6by Vanderbeck, NorbertOther Authors: “...Decroly, Claude...”
Published 1959
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Doctoral Thesis