Ismail, R. (2008). Inner Happiness Building: Rahasia hidup bahagia. Cupid Media Group.
Chicago Style (17th ed.) CitationIsmail, Roni. Inner Happiness Building: Rahasia Hidup Bahagia. Cupid Media Group, 2008.
MLA (8th ed.) CitationIsmail, Roni. Inner Happiness Building: Rahasia Hidup Bahagia. Cupid Media Group, 2008.
Warning: These citations may not always be 100% accurate.