Farlow, Stanley J., author
John Wiley & Sons, 1982
Buku Teks
Angel, Edward, author
Academic Press, 1972
Buku Teks
Springer Cham, 2019
eBooks
Marin, Marin, author
Springer Cham, 2019
eBooks
Houwen, Pieter Jacobus van der
Mathematisch Centrum, 1968
Buku Teks