-. (2005). Ensiklopedi Anak Nasional Jilid 20. PT. Delta Pamungkas.
Chicago Style (17th ed.) Citation-. Ensiklopedi Anak Nasional Jilid 20. PT. Delta Pamungkas, 2005.
MLA (8th ed.) Citation-. Ensiklopedi Anak Nasional Jilid 20. PT. Delta Pamungkas, 2005.
Warning: These citations may not always be 100% accurate.