Kramrisch, Stella, 1898-1993, author
The Phaindon Press, 1954
Buku Referensi
Cannell, D.M., author
Society for Industrial and Applied Mathematics, 2001
eBooks
Bowering, George
General Publishing , 1983
Koleksi Publik
Cunliffe, Marcus, author
A Mentor Books, 1963
Buku Teks
Cunliffe, Marcus, author
A Mentor Books, 1960
Buku Teks