Gaya APA

Smaal, D., Hosack, J, M. (1991). Exploration in Calculus With A Computer Algebra System (1). Amerika: Nuansa Cendekia.

Gaya MLA

Smaal, Donald.D.., Hosack, John, M.. "Exploration in Calculus With A Computer Algebra System". 1 Amerika: Nuansa Cendekia, 1991. Text.