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Masatsugu Tsukahara . en Masatsugu Tsukahara Dai Nana Kai Sekai Kyiku Kaigi Shi Record of the Seventh Biennial Conference of the World Federation of Education Associations Volume Dai Nana Kai Sekai Kyiku Kaigi Zanmu Seiri Bu author date PDJapanoldphoto Black and white portrait photographs of educators Black and white