Tony, S. (2017). Step By Step Jadi Kontraktor Sukses. Starbooks.
Chicago Style (17th ed.) CitationTony, Setiawan. Step By Step Jadi Kontraktor Sukses. Starbooks, 2017.
MLA引文Tony, Setiawan. Step By Step Jadi Kontraktor Sukses. Starbooks, 2017.
警告：这些引文格式不一定是100％准确.