No Inv.: 246, 263, 860/Perp/2c
No Inv.: 6252/P/Perp/99/1c
No Inv.: 6249/P/Perp/99/1c
No Inv.: 92/P/Perp/99/1c
No Inv.: 6261/P/Perp/99/1c
No Inv.: 111/P/Perp/99/1c
No Inv.: 864/S/Perp/98/1c
No Inv.: 58/P/Perp/99/1c~100778-100779/P/Perp/05/2c
No Inv.: 69/P/Perp/99/1c
Judul asli : "Manual on Hydrology"