Darmawan, T. K. (1994). Study kelayakan pendirian usaha jasa Cleaning Service Di Kotamadya Yogyakarta. STIM YKPN.
Chicago Style (17th ed.) CitationDarmawan, Tony Kristiawan. Study Kelayakan Pendirian Usaha Jasa Cleaning Service Di Kotamadya Yogyakarta. STIM YKPN, 1994.
MLA (8th ed.) CitationDarmawan, Tony Kristiawan. Study Kelayakan Pendirian Usaha Jasa Cleaning Service Di Kotamadya Yogyakarta. STIM YKPN, 1994.
Warning: These citations may not always be 100% accurate.