Gaya APA
Murtiyasa, B., Khotimah, R, P. (2006).
Persamaan Differensial Elementer .
Surakarta:
Muhammadiyah University Press.
Gaya MLA
Murtiyasa, Budi., Khotimah, Rita, P..
"Persamaan Differensial Elementer".
Surakarta:
Muhammadiyah University Press,
2006.
Text.