Davies, Ivor K., author
McGraw-Hill, 1976
Buku Teks
edited by Ernest R. House
Academic Press, 1986
Buku Teks
Barbera, Elena, author
Information Science Reference, 2014
Buku Referensi
Green, Joan L.
Springer Publishing, 1977
Buku Teks
Safran, Marc R., author
Elsevier/Saunders, 2011
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