No Inv.: 76497/S/01/1c
No Inv.: 408/S/98/1c
Judul asli : "Theory of Vibration with Applications"
No Inv.: 28/P/Perp/89/1c
No Inv.: 1728-1729/BD/Perp/87/2c
No Inv.: 288/AF/Perp/91/1c
Judul asli : "Principles of Energy Conversion"
No Inv.: 674/P/Perp/97/1c~85432/P/Perp/FIP/03/1c
No Inv.: 79795/AF/91/1c
No Inv.: 81426/P/02/1c