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NIM:D32206009. Bibliografi hlm.72-73.
NIM:D02205078. Bibliografi hlm.69-70.
NIM:D02206068. Bibliografi hlm.119-120.
NIM: D02205062. Bibliografi hlm. 89-90.
Judul Asli : Mankind and mother earth a narrative history of the world.
Judul Asli : Mankind and mother earth a narrative history of the world.