程功. (2012). 365天幸福你自己: Daily book of your happiness. 中华工商联合出版社.
Dyfyniad Arddull Chicago程功. 365天幸福你自己: Daily Book of Your Happiness. 中华工商联合出版社, 2012.
Dyfyniad MLA程功. 365天幸福你自己: Daily Book of Your Happiness. 中华工商联合出版社, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.