Afshar, H.K.
The Institute of the Geophysics Tehran University, 1975
Buku Teks
Afshar, H.K.
The Institute of the Geophysics Tehran University, 1973
Buku Teks
Afshar, H.K.
The Institute of the Geophysics Tehran University, 1974
Buku Teks
Tarbuck, Edward J., author
Maxwell Macmillan, 1993
Buku Teks
McGeary, David, author
McGraw-Hill, 2004
Buku Referensi