Koeswoyo, F. (2008). K-System Perdagangan Umum Versi 8.10. Andi.
Chicago Style (17th ed.) CitationKoeswoyo, Freddy. K-System Perdagangan Umum Versi 8.10. Andi, 2008.
MLA (8th ed.) CitationKoeswoyo, Freddy. K-System Perdagangan Umum Versi 8.10. Andi, 2008.
Warning: These citations may not always be 100% accurate.