-. (1989). Dewan Riset Nasional. Dewan Riset Nasional.
Chicago Style (17th ed.) Citation-. Dewan Riset Nasional. Dewan Riset Nasional, 1989.
MLA (8th ed.) Citation-. Dewan Riset Nasional. Dewan Riset Nasional, 1989.
Warning: These citations may not always be 100% accurate.