Gaya APA

Paryono, H. (1991). LPG : liquified petroleum gas; LNG : liquified natural gas; CNG: compress natural gas (Fotocopy) (1991). : Cepu : PPT Migas-Akamigas,.

Gaya MLA

Paryono, H. "LPG : liquified petroleum gas; LNG : liquified natural gas; CNG: compress natural gas (Fotocopy)". 1991 : Cepu : PPT Migas-Akamigas,, 1991. Text.