Arden, P. (2007). Whatever you think the think opposite. Jakarta: Esensi.
استشهاد بنمط شيكاغوArden, Paul. Whatever You Think the Think Opposite. Jakarta: Esensi, 2007.
MLA استشهادArden, Paul. Whatever You Think the Think Opposite. Jakarta: Esensi, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.