Vance, Charles C., author
McGraw-Hill, 1974
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Roosevelt, Eleanor, author
Harper & Brothers, 1953
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Jun, Jong S., author
Scott, Foresman, 1973
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Hendya Perbangkara, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2016
UI - Tesis (Membership)
Harari, Yuval Noah, author
Vintage Publishing, 2017
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