Van den Berg, Hendrik, 1949-, author
NJ World Scientific, 2011
Buku Teks
Adelman, Irma, author
Stanford University Press, 1961
Buku Teks
Chandrasekhar, S., author
Frederick A. Praeger, 1965
Buku Teks
Saksena, KP
Sage, 1986
Buku Teks
Peterson, Wallace C.
W.W. Norton & Co., 1962
Buku Teks