Matthews, A. (2009). Bahagia di masa sulit. Change Publication.
Chicagoスタイル(17版)引用形式Matthews, Andrew. Bahagia Di Masa Sulit. Change Publication, 2009.
MLA(8版)引用形式Matthews, Andrew. Bahagia Di Masa Sulit. Change Publication, 2009.
警告: この引用は必ずしも正確ではありません.