Gaya APA

SJ, J, P., (tr), A, W. (1992). 10 laku hidup bahagia (Happiness is an inside job) . : .

Gaya MLA

SJ, John, Powell,., (tr), A., Widyamartaya. "10 laku hidup bahagia (Happiness is an inside job)". : , 1992. Text.