Gaya APA
SASSE, L. (1998).
DEWATS Decentralised Wastewater Treatment in Developing Countries (Cetakan I).
Jakarta:
LUDWING SASSE.
Gaya MLA
SASSE, LUDWING.
"DEWATS Decentralised Wastewater Treatment in Developing Countries".
Cetakan I
Jakarta:
LUDWING SASSE,
1998.
Text.