Gaya APA

Lubis, S, H., Wijiarto, D. (2012). Total motivation (Cet. 7). Yogyakarta: Pro-You.

Gaya MLA

Lubis, Satria, Hadi., Wijiarto, Didi. "Total motivation". Cet. 7 Yogyakarta: Pro-You, 2012. Text.