Gaya APA

Boyce, W, E., Diprima, R, C. (2012). Elementary Differential Equations and Boundary Value Problems (ed.10). Amerika: Willey.

Gaya MLA

Boyce, William, E.., Diprima, Richard, C.. "Elementary Differential Equations and Boundary Value Problems". ed.10 Amerika: Willey, 2012. Text.