Metta, Y. (2007). 123 Unique Business Ideas: Ide Bisnis Unik / Yulianto. Salemba Empat.
Chicago Style (17th ed.) CitationMetta, Yulianto. 123 Unique Business Ideas: Ide Bisnis Unik / Yulianto. Salemba Empat, 2007.
MLA (8th ed.) CitationMetta, Yulianto. 123 Unique Business Ideas: Ide Bisnis Unik / Yulianto. Salemba Empat, 2007.
Warning: These citations may not always be 100% accurate.