Chandrasekhar, Subrahmanyan
Radiative transfer
Dover Publications, 1960
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Fontana, Peter A.
Atomic radiative processes
Academic Press, 1982
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Aitchison, Jean, 1938-
Language change : progress or decay?
Cambridge University Press, 2001
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Aitchison, Jean, 1938-
Language change : progress or decay?
Cambridge University Press, 1995
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Aitchison, Jean, 1938-
Language change : progress or decay?
Cambridge University Press, 2013
 Buku Teks SO