[et.al], O. H. H. (1997). Ardiyanto. [s.n.].
Chicago Style (17th ed.) Citation[et.al], Ong Hok Ham. Ardiyanto. [s.n.], 1997.
MLA (8th ed.) Citation[et.al], Ong Hok Ham. Ardiyanto. [s.n.], 1997.
Warning: These citations may not always be 100% accurate.