Watt, William Montgomery
Islamic political thought the basic concepts
Edinburg University Press, 1980
 Buku Teks
Malone, Leo J.
Basic concepts of chemistry
John Wiley & Sons, 1981
 Buku Teks
Sherman, Alan
Basic concepts of chemistry
Houghton Mifflin, 1992
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Malone, Leo J.
Basic concepts of chemistry
John Wiley & Sons, 1994
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Hopling, Charles K.
Basic psychiatric concepts in nursing
Lippincott , 1967
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