?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Rayhanah+Ria+Margono+-+NIM+%3A+04630023%2C+&rft.aulast=Rayhanah+Ria+Margono+-+NIM+%3A+04630023&rft.aufirst=+&rft.degree=Skripsi&rft.date=31+July+2009&rft.title=ANALISIS+KADAR+KALSIUM+DAN+BESI+PADA+KANGKUNG+(Ipomoea+reptans)+MENGGUNAKAN+DESTRUKSI+ASAM+PEKAT&rft.inst=UIN+Sunan+Kalijaga+Yogyakarta