APA Style

Matthews, Andrew. (2007). Bahagia Sekarang . JAKARTA: Karisma Publishing Group.

Chicago Style

Matthews, Andrew. Bahagia Sekarang. JAKARTA: Karisma Publishing Group, 2007. Teks Book.

MLA Style

Matthews, Andrew. Bahagia Sekarang. JAKARTA: Karisma Publishing Group, 2007. Teks Book.

Turabian Style

Matthews, Andrew. Bahagia Sekarang. JAKARTA: Karisma Publishing Group, 2007. Teks Book.