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Buku Referensi
Fink, Johannes Karl
Elsevier, 2015
Buku Teks
Emsley, John
W.H. Freeman Spektrum , 1994
Buku Referensi
Repetto,Robert
World Resources Institute, 1996
Buku Teks
Carin Andyline Noerhadi
Universitas Indonesia, 2014
UI - Skripsi Membership