L`Amour, Louis
The key-lock man
Bantam Book, 1965
Buku Teks
Egan, William F.
Frequency synthesis/ Phase Lock
John Wiley & Sons, 1981
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Dewi Anggraeni
Parallel forces
Indra Pub, 1988
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Hong, Sa-man
Language form and meaning of the navigation
Yeokrak, 2009
Buku Teks
Abeyratne, Ruwantissa
Air navigation law
[Springer-Verlag, Springer-Verlag], 2012
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