Gaya APA

Timpe, A, D., Boedhidarmo, S. (1991). Mengelola Waktu (The Management Of Time) . Jakarta: Elex Media Komputindo.

Gaya MLA

Timpe, A, Dale., Boedhidarmo, Susanto. "Mengelola Waktu (The Management Of Time)". Jakarta: Elex Media Komputindo, 1991. Text.