APA Style

Covey, S, R., Haller, C, C. (2022). Live life in crescendo: karya paling penting selalu di depan kita (Cet. 1). Jakarta: PT. Gramedia Pustaka Utama.

MLA Style

Covey, Stephen, R.., Haller, Cynthia, Covey. "Live life in crescendo: karya paling penting selalu di depan kita". Cet. 1 Jakarta: PT. Gramedia Pustaka Utama, 2022. Text.