-. (1990). Ensiklopedi Nasional Indonesia Jilid 12: P-PEP. PT.Cipta Adi Pustaka.
Chicago Style (17th ed.) Citation-. Ensiklopedi Nasional Indonesia Jilid 12: P-PEP. PT.Cipta Adi Pustaka, 1990.
MLA (8th ed.) Citation-. Ensiklopedi Nasional Indonesia Jilid 12: P-PEP. PT.Cipta Adi Pustaka, 1990.
Warning: These citations may not always be 100% accurate.