Zaenal Arifin. (1990). Computerization of planning of surface water storage / Zaenal Arifin. : .
Zaenal Arifin. Computerization of planning of surface water storage / Zaenal Arifin. : , 1990
Zaenal Arifin. Computerization of planning of surface water storage / Zaenal Arifin. : , 1990.