edited ny Keith Friye
Hutchinson Ross, 1981
Buku Referensi
Haldar, S. K. author
Elsevier, 2014
Buku Teks
edited by Sybil P. Parker
McGraw-Hill, 1997
Buku Referensi
Hurlbut, Cornelius S., author
John Wiley & Sons, 1977
Buku Teks
Broekmans, Maarten A.T.M., editor
Springer, 2012
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