Gaya APA
Theory & problems differential equations. (1981).
Singapore:
McGraw-Hill Book Co..
Gaya Chicago
Theory & problems differential equations.
.
Singapore:
McGraw-Hill Book Co.,
1981.
Buku.
Gaya MLA
Theory & problems differential equations.
.
Singapore:
McGraw-Hill Book Co.,
1981.
Buku.
Gaya Turabian
Theory & problems differential equations.
Singapore:
McGraw-Hill Book Co.,
1981.
Buku.