Gaya APA
al}, R, K, N.
(2012).
Fundamentals of Direfferential Equations
(
Eighth Edition)
.
Boston:
Pearson.
Gaya MLA
al}, R., Kent, Nagle,{et..
"Fundamentals of Direfferential Equations".
Eighth Edition
Boston:
Pearson,
2012.
Text.