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Keratin Keratitis Keraton Ngayogyakarta Hadiningrat Keratong Keratan rentas (geometri) Keratan kon Kerstin Hesselgren Keratan tumbuhan Keraton, Suranenggala KeratonRujukan
WikiPedia: Keratin http://www.wisegeek.com/what-is-keratin.htm http://www.bio-medicine.org/biology-definition/Ker...