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Portal Gatis E-Book and Research Paper

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Silahkan cari di laman berikut: 1) http://gen.lib.rus.ec 2) http://sci-hub.org 3) http://sci-hub.cc 4) http://sci-hub.bz 5) http://search.crossref.org 6) http://booksc.org/ 7) http://libgen.io/ 8) http://gen.lib.rus.ec/scimag/ 9) http://airccj.org/csecfp/library/index.php

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