SCI Science Citation Index 1980 annual : part 4 citaion index Kuwa-Pady
Institute fo Scientific Information, 1981
 Buku Referensi
SCI Science Citation Index 1980 annual : part 6 citaion index Stad-Z
Institute fo Scientific Information, 1981
 Buku Referensi
SCI Science Citation Index 1980 annual : part 3 citaion index Gree-Kuwa
Institute fo Scientific Information, 1981
 Buku Referensi
SCI Science Citation Index 1980 annual : part 5 citaion index Pady-Stad
Institute fo Scientific Information, 1981
 Buku Referensi
SCI Science Citation Index 1980 annual : part 1 citaion index A-Coat
Institute fo Scientific Information, 1981
 Buku Referensi
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