Sebastian, Y. (2013). Time Is More Valuable Than Money. Gramedia Pustaka Utama.
Chicagoスタイル(17版)引用形式Sebastian, Yoris. Time Is More Valuable Than Money. Gramedia Pustaka Utama, 2013.
MLA(8版)引用形式Sebastian, Yoris. Time Is More Valuable Than Money. Gramedia Pustaka Utama, 2013.
警告: この引用は必ずしも正確ではありません.