Srivastava, H.M., author
John Wiley & Sons, 1977
Buku Teks
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John Wiley & Sons, 1973
Buku Teks
Pruss, Jan, author
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eBooks
Polyanin, Andrei D., author
Chapman &Hall/CRC, 2008
Buku Referensi
Abdul Azis Abdillah, author
2016
Artikel Jurnal