Ruckdeschel, F.R.
Basic scientific subroutines; vol. 1,2
McGraw-Hill, 1981
 Buku Teks
Tracton, Ken
The Most popular subroutines in basic
Tab Books , 1980
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Porter, Alan
Basic subroutines for the IBM PC and PCjr
Reading, Mass.: Addison-Wesley, c1985
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Rosdahl, Caroline Bunker
Textbook of basic nursing; Vol. 1
Lippincott Williams & Wilkins, 1999
 Buku Teks
Ewer, J.R.
A course in basic scientific English / J. R. Ewer and G. Latorre
Longman, 1969
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