Narayan, Shanti, author
Shyam Lal Charitable Trust, 1982
Buku Teks
Cartan, Henri, author
Houghton Mifflin, 1970
Buku Teks
Love, Clyde E., author
Macmillan, 1943
Buku Teks
Edwards, Harold M., author
Birkhauser, 1993
Buku Teks
Courant, R., author
Blackie and Son Ltd., 1960
Buku Teks