Delhi : Publications Dividision
Majalah, Jurnal, Buletin
Mann, Prem S.
John Wiley & Sons, 1995
Buku Teks SO
Shankar, Ravi, 1920-2012
[Publisher not identified], [date of publication no identified]
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Shankar, Ramamurti
Plenum Press, 2014
Buku Teks SO
Jha, Raj Kamal
Picador, 2006
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